Category: Sulfide Powder

Sulfide Powder

Copper Sulfide CuS Powder CAS 1317-40-4

Product Name: CuS Powder Copper Sulfide Powder CAS 1317-40-4
Purity: min 99%
Copper sulfide is an inorganic compound with a chemical formula of CuS or CuI2CuII(S2)S. Therefore, two-thirds of the sulphur is actually a persulfate ion, and two-thirds of the copper is a cuprous ion, which is dark brown and extremely polar. Insoluble, it is one of the most insoluble substances (second only to silver sulfide, mercury sulfide, and sulphide sulfide) because its poor solubility makes some seemingly unacceptable reactions.

About Copper Sulfide CuS Powder:
Copper sulfide is an inorganic compound with the chemical formula CuS, so it is actually a mixture of cuprous sulfide and supersulfide and is a black and brown amorphous powder or granular substance. It is extremely insoluble and is one of the most difficult substances to dissolve because its insolubility allows some seemingly impossible reactions to occur. Bonding in copper sulfide cannot be correctly described in terms of simple oxidation state forms because the properties of the Cu-S bond are somewhat covalent rather than ionic and have a high degree of delocalization, resulting in a complex electronic band structure.
Copper sulfide is a compound and mineral, which can be divided into three categories: single sulfide, disulfide and mixed single sulfide. Copper sulfide is naturally occurring in nature as a mineral, called cuprizone. It conducts electricity moderately. Both synthetic materials and minerals contain copper sulfide.
Copper sulfide describes a series of compounds and minerals from which minerals and synthetic materials are composed. Some copper sulfides are economically important ores. The main copper sulfide minerals include Cu2S(chalcocite) and CuS(copper porphyry).In the mining industry, bornite or chalcopyrite consisting of a mixed copper-iron sulfide is often referred to as "copper sulfide".In chemistry, "binary copper sulfide" is any binary compound of the elements copper and sulfur. Regardless of their origin, the composition of copper sulfides varies greatly at 0.5 Cu/S 2 and includes many non-stoichiometric compounds. Feel free to send an inquiry to get the latest price if you would like to buy Copper Sulfide CuS Powder in bulk.

How is Copper Sulfide CuS Powder produced?
No sulfur and copper directly mixed heating to prepare copper sulfide, because the oxidation of sulfur is weak, the reaction will generate a mixture of copper sulfide and cuprous sulfide:
2Cu+S==△==Cu2S  ,   Cu+S==△==CuS
Can make copper powder and sulfur dissolved in carbon disulfide reaction at 100℃ to produce pure copper sulfide:
Cu+S==100℃ ,  CS2==CuS
Laboratory preparation of copper sulfide is usually prepared by adding H2S gas or soluble sulfide (such as sodium sulfide) into copper salt (mainly copper chloride and copper sulfate) solution through double decomposition reaction:
CuCl2+H2S====CuS↓+2HCl (weak acid to strong acid)
This reaction can occur because copper sulfide is too insoluble, causing the equilibrium to shift to the right.
CuSO4+Na2S====CuS↓+Na2SO4
 
Applications of Bismuth Oxide Bi2O3 powder:
Copper sulfide has the following uses:
Solar cell
Superionic conductor
photodetector
Conductive electrode
Photothermal spectral analysis conversion equipment
Microwave shielding coating
An active absorber of radio waves
Gas sensor
Infrared radiation polarizer

Storage Condition of Copper Sulfide CuS Powder:
The damp reunion will affect CuS powder dispersion performance and using effects, therefore, Copper Sulfide CuS Powder should be sealed in vacuum packing and stored in a cool and dry room, the Copper Sulfide CuS Powder can not be exposure to air. In addition, the CuS powder should be avoided under stress.

Packing & Shipping of Copper Sulfide CuS Powder:
We have many different kinds of packing which depend on the Copper Sulfide CuS Powder quantity.
Copper Sulfide CuS Powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Copper Sulfide CuS Powder shipping: could be shipped out by sea, by air, by express, as soon as possible once payment receipt.

2023-01-30

Sulfide Powder

Silicon Sulfide SiS2 Powder CAS 13759-10-9

Product Name: Silicon Sulfide
Silicon Sulfide formular: SiS2
Silicon Sulfide molecular weight: 92.21
Silicon Sulfide density: 1.853 g/cm3
Silicon Sulfide melting point: 1090℃
Silicon Sulfide boiling point: 1130 ℃
Silicon Sulfide CAS NO. : 13759-10-9
Silicon Sulfide details:
Silicon sulfide, the molecular formula is SiS2. White fibrous orthorhombic or tetragonal crystals are stable at normal temperature and pressure and decomposed into SiO2 and H2S in the presence of moisture. It burns when heated in the air. 

About Silicon Sulfide SiS2 Powder:
Silicon sulfide is an inorganic compound with the molecular formula Sis2.Sis2 = 92.21, colorless acicular crystal.The relative density is 2.02, the melting point is 1090℃, and it sublimates in nitrogen at 1250℃. Insoluble in benzene; Soluble in dilute base. Hydrolysis and ammonolysis occurred with water, ethanol and liquid ammonia, respectively. Reaction with alkali metal sulfides to form thiosilicates.Like silicon dioxide, the material is polymerized, but it uses a one-dimensional structure that is distinct from the usual silicon dioxide form.
Like other silicosulfide compounds, such as bis (trimethylsilyl) sulfides, SiS2 is easy to decompose to release hydrogen sulfide. In liquid ammonia, it has been reported to form imide Si(NH)2 and NH4SH, but recent reports have identified the crystallization (NH4)2[SIS3 (NH3)]·2NH3 as a product containing the tetrahedral orthosilicate anion, SIS3 (NH3).
Tetraethyl orthosilicate and H2S were synthesized by reaction with ethanol. With a large volume of tert-butyl alcohol, alcoholysis to obtain tri (tert-butyl) silicon mercaptan:
3 (CH3)3COH + Sis2 →[(CH3)3CO] 3Sish + H2S
Reaction with sodium sulfide, magnesium sulfide and aluminum sulfide to give sulphosilicate. Feel free to send an inquiry to get the latest price if you would like to buy Silicon Sulfide SiS2 Powder in bulk.

How is Silicon Sulfide SiS2 Powder produced?
1. Put aluminum powder and excess sulfur into the crucible and burn it to get aluminum sulfide. The aluminum sulfide is crushed and mixed with slightly excessive silica sand. Place the mixture in a shingle, then place the shingle in a quartz tube, and heat the quartz tube while injecting a small amount of dry nitrogen. The reaction starts at 1100℃, and the sublimated Sis2 adheres to the low-temperature region of the tube at 1200 ~ 1300℃. When purified, it is sublimated again in nitrogen or vacuum. Tetragonal Sis2 can be prepared by heating the mixture of silicon and sulfur at 5×103MPa and 700℃.
 
2. Decompose hydrocarbon self-based silicon by heating to generate silicon disulfide and sulfide at 250 ~ 300℃.If sulfur is added, it decomposes at a lower temperature. Si-disulfide and ethylthioane (C2H5-S2-C2H5, C2H5-S3-C2H5) are produced by mixing 96g sulfur with 39g Si(SC2H5)4 and heating it at 200℃ for 10min. The latter is dissolved in benzene and filtered to prevent it from mixing with moisture.
 
Applications of Silicon Sulfide SiS2 Powder:
Silicon sulfide is a medium water and acid soluble source of silicon used for compatibility with sulfates. Sulfate is a sulfate or ester formed by replacing one or two hydrogens with a metal.

Storage Condition of Silicon Sulfide SiS2 Powder:
The damp reunion will affect SiS2 powder dispersion performance and using effects, therefore, Silicon Sulfide SiS2 Powder should be sealed in vacuum packing and stored in a cool and dry room, the Silicon Sulfide SiS2 Powder can not be exposure to air. In addition, the Silicon Sulfide SiS2 Powdershould be avoided under stress.

Packing & Shipping of Silicon Sulfide SiS2 Powder:
We have many different kinds of packing which depend on the Silicon Sulfide SiS2 Powder quantity.
Silicon Sulfide SiS2 Powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Silicon Sulfide SiS2 Powder shipping: could be shipped out by sea, by air, by express, as soon as possible once payment receipt.

2023-01-26

Sulfide Powder

Cadmium Sulfide CdS Powder CAS 1306-23-6

About Cadmium Sulfide CdS Powder :
Cadmium sulfide is an inorganic substance with a chemical formula of CdS. There are two crystals, the α-form is a lemon yellow powder, and the β-form is an orange-red powder. Slightly soluble in water, soluble in acid, slightly soluble in ammonia. Cadmium sulfide is a yellow solid. It has two different crystal structures in nature, namely, the rare minerals clinopyroxene and leucite, but it is more commonly used as an impurity substituent in zinc ore with similar structure, sphalerite and wurtzite, while zinc ore Sphalerite and wurtzite are the main economic sources of cadmium. As a compound that is easy to separate and purify, it is the main source of cadmium in all commercial applications. Its bright yellow color made it used as a pigment for the yellow paint "Cadmium Yellow" in the 18th century.
 
Like zinc sulfide, cadmium sulfide has two crystal forms. More stable hexagonal wurtzite structure (present in Greenockite mineral) and cubic zinc mixed structure (present in Hawleyite mineral). In both forms, cadmium and sulfur atoms have four coordinates. There is also a high-pressure form with a NaCl rock salt structure.
 
Cadmium sulfide is a direct bandgap semiconductor (energy gap 2.42 eV). The proximity of its bandgap to the wavelength of visible light gives it a colorful appearance.
Both polymorphs are piezoelectric, and the hexagon is also pyroelectric.
CdS crystal can be used as the gain medium of solid-state lasers.
CdS can be used in combination with other layers in the form of thin films for certain types of solar cells. CdS is also one of the first semiconductor materials used in thin-film transistors (TFT).
 
The CdS film can be a piezoelectric film and has been used as a transducer that can operate at frequencies in the GHz range. Feel free to send an inquiry to get the latest price if you would like to buy Cadmium Sulfide CdS Powder in bulk.

Cadmium Sulfide CdS Powder CAS 1306-23-6
Cadmium sulfide Density 4.826 g/cm, solid.
Cadmium sulfide Melting point 1750 °C, 2023 K, 3182 °F (10 MPa)
Cadmium sulfide Boiling point 980 °C, 1253 K, 1796 °F (subl.)
Cadmium sulfide ：Water soluble
Cadmium sulfide Solubility Soluble in acid, slightly soluble in ammonia
Cadmium sulfide Refractive index: 2.529
Cadmium sulfide Crystal form hexagonal, cubic phase
Cadmium sulfide Standard heat generation: -162 kJ/mol
Cadmium sulfide Standard molar entropy S298 65 J/mol·K
Cadmium sulfide Decomposed by high heat to produce toxic sulfide fumes.

How is Cadmium Sulfide CdS Powder produced?
Cadmium sulfide can be prepared by precipitation from soluble cadmium(II) salts with sulfide ions. This reaction has been used for gravimetric analysis and qualitative inorganic analysis.
 
Industrial cadmium ore is leached into cadmium sulfate with sulfuric acid, adjusted to pH=3.5 and precipitated with sodium sulfide, and the pH should not be too low.
 
The production of pigments usually involves precipitation of CdS, washing of solid precipitates to remove soluble cadmium salts, then calcination (roasting) to convert them into hexagons, and then grinding to produce powders. When cadmium sulfide selenide is required, CdSe and CdS will co-precipitate, and cadmium selenide will be generated during the calcination step.
 
Applications of Cadmium Sulfide CdS Powder :
Cadmium sulfide is called cadmium yellow and is used to color enamel, glass, ceramics, plastics and paint.
Nickel yellow is suitable for coloring almost all resins and is translucent in plastics. There is a light-colored cadmium yellow containing zinc sulfide in polyethylene, and the molding processing time should be extended appropriately because zinc sulfide will promote the decomposition of polyethylene plastic and make it green. Cadmium yellow should not be mixed with pigments containing copper or copper salts to avoid the formation of black copper sulfide or green copper sulfate. Cadmium yellow and blue pigments can be mixed together to obtain green.
Cadmium sulfide is mainly used as a pigment owing to its good thermal stability, light and weather fastness, chemical resistance, and high opacity.
Other applications of cadmium sulfide are listed below:
Photoresistors
Thin-film transistors
Transducers
Solar cells
Electrochemical deposition
Sol-gel techniques
Screen printing.

Storage Condition of Cadmium Sulfide CdS Powder:
Damp reunion will affect CdS powder dispersion performance and using effects, therefore, Cadmium Sulfide CdS Powder should be sealed in vacuum packing and stored in cool and dry room, the Cadmium Sulfide CdS Powder can not be exposure to air. In addition, the CdS powder should be avoided under stress.

Packing & Shipping of Cadmium Sulfide CdS Powder:
We have many different kinds of packing which depends on the Cadmium Sulfide CdS Powder quantity.
Cadmium Sulfide CdS Powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Cadmium Sulfide CdS Powder shipping:could be shipped out by sea , by air, by express?as soon as possible once payment receipt.

 

2023-01-26

Sulfide Powder

Stannic Sulfide SnS2 Powder CAS 1314-95-0

About Stannic Sulfide SnS2 Powder:
The tin disulfide is an inorganic compound with a chemical formula of SnS2. It is a yellow hexagonal flake with a CdI2 crystal structure. It is hardly soluble in water, but it is soluble in aqua regia and hot alkali solution, and also soluble in sodium sulfide solution. It is commonly used to Make golden paint.
Tin(IV) sulfide crystallizes in the form of cadmium iodide precursor crystals, where Sn(IV) is located in an "octahedral pore" defined by six sulfide centers. It naturally appears as rare mineral montmorillonite, which can be used as a semiconductor material with a bandgap of 2.2 eV.
SnS2 is an n-type semiconductor material with a hexagonal CdI2 structure. Tin disulfide (SnS2) is a layered metal dihalide semiconductor with a chemical and crystal structure similar to molybdenum disulfide (MoS2). In each individual layer, Sn is sandwiched between two Slayers with strong covalent bonds, while a single monolayer is maintained by weak van der Waals forces. When the weak van der Waals force is overcome by physical or chemical peeling, each layer will break freely.
Like many other two-dimensional semiconductors, SnS2 exfoliates to form atomic layer sheets, which can be used in FET, photovoltaic solar cells, sensors, and photocatalyst applications.
The tin disulfide is an acidic sulfide, soluble in aqua regia and hot alkali solution, and can undergo coordination reaction with concentrated hydrochloric acid, but it is insoluble in dilute hydrochloric acid, insoluble in water and nitric acid. It can react with ammonium sulfide to dissolve. Feel free to send an inquiry to get the latest price if you would like to buy Stannic Sulfide SnS2 Powder in bulk.

Stannic Sulfide CAS 1314-95-0 Description:
Product Name: stannic sulfide
Stannic Sulfide formular: SnS2
Stannic Sulfide color: yellow
Stannic Sulfide particle size: -100mesh
Stannic Sulfide purity: 99.99%
Stannic Sulfide apperance: yellow powder
Stannic Sulfide density: 4.5g/cm3
Stannic Sulfide production method: 
1mol of high-purity tin and 2mol of high-purity sulfur are vacuum smelted under high temperature and high pressure, and then melted after subsequent treatment.
Stannic Sulfide analysis:

How is Stannic Sulfide SnS2 Powder produced?
A bright yellow tin disulfide precipitate can be obtained by passing hydrogen sulfide into the acid solution of tin tetrachloride
In addition, selenium disulfide can also be prepared by the action of sulfide on tin chloride solution.
Tin disulfide can be obtained by directly combining tin and sulfur in the presence of iodine. The reaction requires heating:
Sn + 2 S → SnS2
Another method is to pass hydrogen sulfide into the tin (IV) salt or tin (IV) salt solution and precipitate it.

Applications of Stannic Sulfide SnS2 Powder:
Tin disulfide (SnS2) is a two-dimensional van der Waals semiconductor material with excellent photoelectric properties. The material is non-toxic, environmentally friendly, rich in content and easy to prepare. The properties of tin sulfide are semiconductors, which are mainly used in laboratory research and development and experiments, and are currently very active in the market.
Tin disulfide is an n-type semiconductor material with a layered hexagonal CdI2 crystal structure and a wide bandgap of about 2.35 eV; the wide bandgap makes it have good optical and electrical properties and can be used for holographic recording and electrical conversion System materials, solar cell materials and anode materials of Lithium Chemicalbook sub-cells, etc.
Because tin disulfide has a bandgap similar to silicon, is safe and environmentally friendly, and has a high absorption coefficient, it is very suitable as an absorber layer for solar cells. In recent years, it has become a research hotspot for domestic and foreign experts. It can also be used for imitation gold plating and manufacturing. Used for paints and so on.
Tin disulfide single crystals can be used to prepare single-layer and few-layer SnS2 by mechanical or liquid stripping.
Tin disulfide powder is suitable for liquid chemical exfoliation to prepare SnS2 nanosheets and nanoparticles as low as a few layers of thin films.
Tin disulfide has high sensitivity and high surface activity. The exfoliated SnS2 single-layer or multi-layer ultra-thin film made of bulk crystals and powder has also been used in light emitters, field-effect transistors (FET), gas sensors, and photodetectors. , Thermoelectric photovoltaic and other fields and energy storage equipment, such as the application of lithium-ion batteries.

Storage Condition of Stannic Sulfide SnS2 Powder:
Damp reunion will affect SnS2 powder dispersion performance and using effects, therefore, Stannic Sulfide SnS2 Powder should be sealed in vacuum packing and stored in cool and dry room, the Stannic Sulfide SnS2 Powder can not be exposure to air. In addition, the SnS2 powder should be avoided under stress.

Packing & Shipping of Stannic Sulfide SnS2 Powder:
We have many different kinds of packing which depends on the Stannic Sulfide SnS2 Powder quantity.
Stannic Sulfide SnS2 Powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Stannic Sulfide SnS2 Powder powder shipping:could be shipped out by sea , by air, by express?as soon as possible once payment receipt.

 

2023-01-22

Sulfide Powder

Gallium Sulfide Ga2S3 Powder CAS 12042-22-5

About Gallium Sulfide Ga2S3 Powder:
Gallium (III) sulfide Ga2S3 is a compound of sulfur and gallium, i.e., a semiconductor having electron and photon parts. Ballium sulfide (III) is slowly decomposed in moist air and releases hydrogen sulfide, and can be used as sulfate. Gallium titrates and thiolate acid salts are formed in a strong base. Ga2S3 was not proportional to the high temperature of the non-chemical measuring sulfide, and Ga4SX (4.8
 
Gallium (III) sulfide Ga2S3 has four polymorphs, α (hexagonal), α '(single lean), β (hexagon), and γ (cubic). Alpha is yellow. The crystal structure is related to the four-faceted position in Zns in Zns in Zns. The similarity of the crystal form of the γ-flared zinc ore (zinc mixture). Feel free to send an inquiry to get the latest price if you would like to buy Gallium Sulfide Ga2S3 Powder in bulk.

High Purity 99.99% Semiconductor Material Ga2S3 Powder Price Gallium Sulfide

Certificate Analysis of Gallium Sulfide

Gallium Sulfide formula: Ga2S3

Gallium Sulfide property: white solid

Gallium Sulfide density: 3.46-3.65g/cm3

Gallium Sulfide melting point: 1090-1255℃

Gallium Sulfide application: semiconductor industry, copper indium gallium sulfur thin-film solar cells

How is Gallium Sulfide Ga2S3 Powder produced?
Ga2S3 was heated by heating Ga in an H2S flow at high temperature (950 ° C), by flow in a high temperature (950 ° C), can pass through a high temperature (950 ° C) in the stream of high temperature (950 ° C). The element reaction was prepared by reacting in a high temperature or white solid.
It can also be prepared by solid-state reactions of GaCl3 and Na2.
 
Applications of Gallium Sulfide Ga2S3 Powder:
The sulfide (Ga2S3) belongs to a set of broadband semiconductors, a broadband semiconductor having an interesting characteristic for infrared and nonlinear optics. The interest of the Ga2S3 material is highly passivated by various semiconductor surfaces to enhance its electrical and optical properties. This work involves the growth of the microcrystalline halogen layer on the semiconductor gap substrate.
The Ga2S3 layer: 450 ° C and 600 ° C were successfully obtained by a thin clearance semiconductor plate reaction sulfur steam at two different temperatures. In the case where the lower temperature (400 ° C) is observed on the gallium sulfide layer. Applicable atomic force microscopy and scanning electron microscopy to illustrate the topography of the obtained Ga2S3 layer. They have a thickness range from hundreds of nanometers to about 1-2 μm.

Storage Condition of Gallium Sulfide Ga2S3 Powder:
Damp reunion will affect Ga2S3 powder dispersion performance and using effects, therefore, Gallium Sulfide Ga2S3 Powder should be sealed in vacuum packing and stored in cool and dry room, the Gallium Sulfide Ga2S3 Powder can not be exposure to air. In addition, the Ga2S3 powder should be avoided under stress.

Packing & Shipping of Gallium Sulfide Ga2S3 Powder:
We have many different kinds of packing which depend on the Gallium Sulfide Ga2S3 Powder quantity.
Gallium Sulfide Ga2S3 Powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Gallium Sulfide Ga2S3 Powder shipping: could be shipped out by sea, by air, by express, as soon as possible once payment receipt.

2023-01-20

Sulfide Powder

Nickel Disulfide NiS2 Powder CAS 12035-51-7

About Nickel Disulfide NiS2 Powder:
Nickel sulfide is an inorganic salt, insoluble in water, soluble in nitric acid, aqua regia.Nickel disulfide is an inorganic compound with the chemical formula Nis2 and has a pyrite structure.Nickel disulfide is a kind of electronic, energy and chemical material which has attracted more and more attention in recent years. It has unique electronic structure, molecular structure and excellent optical, electrical and magnetic properties. Biomedicalmaterialsprogram is a trusted global Nickel Disulfide NiS2 Powder supplier. Feel free to send an inquiry about the latest price of Nickel Disulfide at any time.

Product Name: Nickel (IV) Disulfide
Lithium Sulfide molecular weight: 122.82
Lithium Sulfide CAS NO.: 12035-51-7
Lithium Sulfide density: 5.8 g/cm3
Lithium Sulfide chemical formula: NiS2
Lithium Sulfide color: black
Lithium Sulfide Storage:
Free from heat and kept in ventilated and dry place.
Lithium Sulfide Application:
It can be used as a potential electrolyte material in rechargeable lithium-ion batteries.

How is Nickel Disulfide NiS2 Powder Produced?
A method for preparing high purity nickel disulfide comprises the following steps: Soluble nickel salt dissolved in deionized water, add acid to adjust solution pH value is 0 ~ 3, and add water-soluble sulfur compounds, sulfur/nickel mole ratio of 4 ~ 10, after mixing completely dissolved into the reaction kettle, and the nickel salt and sulfur compounds under the environment of microwave thermal water, in 180 ~ 220 ℃ constant temperature reaction of 1 ~ 3 h, After washing with water and alcohol, high purity nickel disulfide was obtained by vacuum drying.
 
Applications of Nickel Disulfide NiS2 Powder:
Nickel disulfide is used in the manufacture of nickel-containing catalysts and high-nickel alloys.
Nickel disulfide was used as a catalyst for catalytic decomposition and hydrogenation of organic compounds containing sulfur.
Nickel sulfide is increasingly conspicuous in recent years, a kind of electronics, energy and chemical material, has a unique electronic structure, molecular structure and excellent optical, electrical and magnetic properties of the rechargeable lithium battery cathode materials, photoconductive materials, solar energy battery storage device, infrared detector and hydrogenation denitrification reaction, hydrogenation desulfurization reaction has a broad industrial application prospect, etc.

Storage Condition of Nickel Disulfide NiS2 Powder:
The damp reunion will affect NiS2 powder dispersion performance and using effects, therefore, Nickel Disulfide NiS2 Powder should be sealed in vacuum packing and stored in the cool and dry room, the Nickel Disulfide NiS2 Powder can not be exposure to air. In addition, the Nickel Disulfide NiS2 Powder should be avoided under stress.

Packing & Shipping of Nickel Disulfide NiS2 Powder:
We have many different kinds of packing which depend on the Nickel Disulfide NiS2 Powder quantity.
Nickel Disulfide NiS2 Powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Nickel Disulfide NiS2 Powder shipping: could be shipped out by sea, by air, by express, as soon as possible once payment receipt.

2023-01-19

Sulfide Powder

Tungsten Disulfide WS2 Powder CAS 12138-09-9

About Tungsten Disulfide WS2:
Tungsten disulfide is an inorganic compound composed of tungsten and sulfur, with the chemical formula WS2. This compound is part of a group of materials called transition metal dihalides. It naturally appears as a rare tungsten ore. This material is part of certain catalysts used for hydrodesulfurization and hydrodenitrogenation.
WS2 uses a layered structure similar to MoS2 or the same type of MoS2, instead of a coordination sphere with W atoms (instead of molybdenum atoms) in a triangular prism. Due to this layered structure, WS2 formed inorganic nanotubes, which were discovered after heating a thin sample of WS2 in 1992.
Most of the WS2 forms dark gray hexagonal crystals with a layered structure. Like the closely related MoS2, it has the characteristics of a dry lubricant.
Although people have long believed that WS2 is relatively stable in ambient air, recent reports on single-layer WS2 oxidation in the environment have found that this is not the case. WS2 is converted to tungsten oxide in a single layer form by a photooxidation reaction fairly quickly (within a few days in ambient light and atmosphere). The oxidation process includes visible wavelength light easily absorbed by the single-layer WS2 (
WS2 is also attacked by a mixture of nitric acid and hydrofluoric acid. When heated in an oxygen-containing atmosphere, WS2 is converted to tungsten trioxide. When heated in the absence of oxygen, WS2 will not melt but will decompose into tungsten and sulfur, but the decomposition temperature is only 1250°C.
Historically, the separation of monolayer WS2 used a chemical exfoliation method, that is, inserting lithium from n-butyl lithium (in hexane), and then stripping the inserted Li compound by ultrasonic treatment in water. WS2 is also shed by treatment with various reagents such as chlorosulfonic acid and lithium halide. Feel free to send an inquiry to get the latest price if you would like to buy tungsten disulfide WS2 powder in bulk.

Tungsten Disulfide details:
Tungsten Disulfide particle size: FSSS=0.4 to 0.7 μm, FSSS=0.85 to 1.15μm.  80nm
Tungsten Disulfide purity: 99.9%

How is Tungsten Disulfide WS2 produced?
1. Roasting decomposition method:
Tungstic acid reacts with ammonia water under stirring at 57-60°C for 3 hours, and the heat preservation naturally settles for more than 16 hours. The generated ammonium tungstate reacts with hydrogen sulfide gas to generate ammonium tetrathiotungstate after high-temperature roasting and decomposition into tungsten disulfide.
H2WO4+2NH3·H2O→(NH4)2WO4+2H2O
(NH4)2WO4+4H2S→(NH4)2WS4+4H2O
2(NH4)2WS4+3O2→2WS2+4NH3+2S+2SO2+H2O
2. Tungsten reacts very slowly with liquid sulfur. WS2 can be formed by passing sulfur vapor to red hot tungsten. Tungsten is mixed with stoichiometric sulfur bloom and reacted in a nitrogen atmosphere at 800°C for 24 hours to form WS2, such as reacting at 6MPa and 1800°C to form orthorhombic WS2.
3. Using ammonium tetrathiotungstate as the raw material, heating and decomposing the ammonium tetrathiotungstate under the condition of isolating the air, the temperature rises from room temperature to 700-1200℃ with a temperature gradient of 100-200℃/hour during heating. After being kept at this temperature for 24 to 48 hours, it is then reduced to room temperature with a temperature gradient of 30 to 110°C/hour, and the material is discharged and crushed.
The preparation method of ultrafine scaly crystal tungsten disulfide used for lubricants has simple process equipment, does not pollute the environment, and is safe and reliable in operation, and can produce tungsten disulfide with stable quality, high purity, and ultrafine crystal structure of hexagonal crystal system.

Applications of Tungsten Disulfide WS2:
Tungsten disulfide (WS2) or tungsten disulfide is a very smooth dry film friction coating. The friction coefficient of WS2 is extremely low, 0.03, which is lower than PTFE, graphite or molybdenum disulfide (MoS2). Compared with many other WS2, it has unparalleled performance in terms of lubricity, non-stick, low friction, wears life and rated size. It has a wide range of applications in transistors, sensors, photocatalysis, electronic equipment, etc. Tungsten disulfide powder has good solubility in water and ethanol.
WS2 is an excellent release material for plastic molds, extrusion molds and other demolding applications.
WS2 can eliminate the need for hydraulic oil, or can be used with petrochemical oil, grease, synthetic oil, silicone valve and hydraulic oil. It has an affinity for the fluid layer and maintains the fluid layer. It helps to keep oil or grease on the surface, thereby further improving the lubrication effect.
When the thickness is less than 1 micron, small parts can be coated without tolerance problems.
WS2 is also a fairly inert and non-toxic material that has been used in medical equipment and food processing applications.
WS2 replaces customer base materials through high-speed processes at ambient temperature. It does not make the substrate continuous or warped.
WS2 can be used alone or combined with our PVD hard coating to improve durability.

Storage Condition of Tungsten Disulfide WS2 Powder:
Damp reunion will affect WS2 powder dispersion performance and using effects, therefore, Tungsten Disulfide WS2 Powder should be sealed in vacuum packing and stored in cool and dry room, the Tungsten Disulfide WS2 Powder can not be exposure to air. In addition, the WS2 powder should be avoided under stress.

Packing & Shipping of Tungsten Disulfide WS2 Powder:
We have many different kinds of packing which depends on the Tungsten Disulfide WS2 Powder quantity.
Tungsten Disulfide WS2 Powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Tungsten Disulfide WS2 Powder shipping:could be shipped out by sea , by air, by express?as soon as possible once payment receipt.



 

2023-01-17

Sulfide Powder

Bismuth Sulfide Bi2S3 Powder CAS 1345-07-9

About Bismuth Sulfide Bi2S3 Powder:
Bismuth sulfide, Chemical formula Bi2S3. The molecular weight is 514.15. Brown-yellow powder or crystal. Specific gravity is 7.39. Decomposes at 685℃. Insoluble in water and ethyl acetate, but soluble in nitric acid and hydrochloric acid. It is made by melting metallic bismuth with sulfur or passing hydrogen sulfide into bismuth salt solution. Used to prepare bismuth compounds. Bismuth sulfide is an important semiconductor material, and its application in optoelectronic components and thermoelectric devices has brought great convenience to mankind. Nano-bismuth sulfide makes its various properties more optimized. Because the properties of nano-materials depend to a large extent on the morphology of nanomaterials, it is of substantial significance to synthesize more bismuth-sulfide nanostructures with special morphologies.
 
Bismuth sulfide (Bi2S3), as an important semiconductor material, has potential application value in thermoelectric, electronic and optoelectronic devices and infrared spectroscopy. The bandgap energy of bismuth sulfide at room temperature is 1.33eV, which can be used to make photoelectric converters and is widely used in thermoelectric cooling processes. Nano-scale bismuth sulfide can not only blue-shift the ultraviolet-visible absorption wavelength and fluorescence emission wavelength, but also generate a nonlinear optical response, enhance the redox ability of nanoparticles, and has the excellent photoelectric catalytic performance. It has broad application prospects in luminescent materials, nonlinear optical materials and photocatalytic materials. If you want to buy bismuth sulfide powder in bulk, please feel free to send an inquiry to get the latest price.

Bismuth Sulfide Bi2S3 Powder CAS 1345-07-9
Melting point: 685°C (dec.)
CAS number: 1345-07-9
EINECS number: 215-716-0
Density=7.6-7.8 g/cm³

How is Bismuth Sulfide Bi2S3 Powder produced?
Bismuth sulfide is made by melting metallic bismuth with sulfur or transferring hydrogen sulfide into a bismuth salt solution. Used to make bismuth compounds, used to make other bismuth compounds.

Applications of Bismuth Sulfide Bi2S3 Powder:
Bismuth sulfide powder can be used for the preparation of bismuth sulfide nanoplates nano-platelets and ultrathinthin films.
Bismuth sulfide powder is suitable for liquid chemical peeling to prepare Bi2S3 nanosheets and nanoparticles, up to several layers of thin films. 10% deionized water in 90% isopropanol is the best mixed solvent for efficient peeling of layered Bi2S3 nanosheets.
Bismuth sulfide (Bi2S3) has a favorable bandgap of 1.3 eV (close to infrared light) and a relatively large absorption coefficient. It can be used in solution-processed thermoelectric devices, photodetectors, photosensitizers, solar cells and supercapacitors. Bi2S3 is also an interesting candidate for polymer-nanoparticle solar cells.
Bismuth sulfide has the advantages of environmental friendliness, photoconductivity, and nonlinear optical response. It is widely used in solar cells, photodiode arrays, and infrared spectroscopy. It can also be used to make other bismuth compounds, free-cutting steel additives, the Microelectronics industry.

Storage Condition of Bismuth Sulfide Bi2S3 Powder:
Damp reunion will affect Bi2S3 powder dispersion performance and using effects, therefore, Bismuth Sulfide Bi2S3 Powder should be sealed in vacuum packing and stored in the cool and dry room, the Bismuth Sulfide Bi2S3 Powder can not be exposure to air. In addition, the Bismuth Sulfide Bi2S3 Powder should be avoided under stress.

Packing & Shipping of Bismuth Sulfide Bi2S3 Powder:
We have many different kinds of packing which depends on the Bismuth Sulfide Bi2S3 Powder quantity.
Bismuth Sulfide Bi2S3 Powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Bismuth Sulfide Bi2S3 Powder shipping:could be shipped out by sea , by air, by express?as soon as possible once payment receipt.

 

2023-01-08

Sulfide Powder

Antimony Sulfide Sb2S3 Powder CAS 1314-87-0

About Antimony Sulfide Sb2S3 Powder:
Sulfide is bismuth to black gray crystallization or powder. Template oxidation in the open air. It is also soluble in a non-volatile hydroxide solution, dissolved in concentrated hydrochloric acid, and releases hydrogen sulfide, insoluble in water. Pure triforium sulfide is a yellow-free non-shaped powder, insoluble in water, acetic acid, and acetic acid, soluble in concentrated hydrochloric acid, alcohol, ammonium sulfide solution. Sulfur hydrazine in the fireworks and firecrackers is processed as hydrazine ore powder, which is a black or gray-black powder, with metal gloss, insoluble in water, with strong reducing. poisonous.
The trioxidant is stable at room temperature, but the corresponding oxide can be obtained in the air, or it can be reduced by H2 or Fe.
The trioxide is bismuth dissolved in concentrated hydrochloric acid.
SB2S3 + 6H + 8Cl → 2SBCL4- + 3H2S ↑
Feel free to send an inquiry to get the latest price if you would like to buy Antimony Sulfide Sb2S3 Powder in bulk.

Product Name: Antimony Sulfide
Antimony Sulfide formula: Sb2S3
Antimony Sulfide molecular weight: 339.68
Antimony Sulfide density: 4.12g/cm3
Antimony Sulfide Melting point: 550℃
Antimony Sulfide boiling point: 1080℃
Antimony Sulfide hardness: HB2-2.5
Antimony Sulfide Application:
Widely used in military gunpowder, glass rubber, match fireworks, friction equipment, etc. as an additive or catalyst, moisture-proof agent and heat stabilizer, and as a flame retardant synergist instead of cerium oxide.
Analysis of Antimony Sulfide Sb2S3 Powder CAS 1314-87-0:

How is Antimony Sulfide Sb2S3 Powder produced?
There are three preparation methods: natural mine processing law, antimony transformation method and Direct synthesis.
Natural mine processing law
Natural Hui bismuth mine is screened, crushing and other processing of sulfide finished products.
Bamboo white conversion method
Reaction equation:
SB2O3 + 4NA2S + CA (OH) 2 + 3H2O → SB2S3 + 8NAOH + CAS
Operation method: After mixing SB2O3 1.80kg, Ca (OH) 2 0.6 kg, H2O 6kg, was heated at 80 ° C for 1 h. 2.41 kg of 60% Na2S was dissolved in 3L water to Na2S solution, and the Na2S solution was added to the above mixture under stirring, and the mixture was stirred for 30 min. Then 30% HCl was acidified to a pH of 0.4 in 3 h. The temperature was raised to 95 ° C, stirred for 3 h, cooling, filtration, washing, drying, and prepared SB2S3 pigment.
Direct synthesis
Reaction equation:
3S + 2SB → SB2S3
Operation method: After melting the metal ruthenium, the sulfur vapor is introduced into which sulfide is directly compounded into trioxide. The amount of sulfur was used as 103% to 115% of the stoichiometric, and the stirring reaction was 0.3 to 1 h, and the reaction temperature was maintained at 650 to 850 ° C.
 
Applications of Antimony Sulfide Sb2S3 Powder:
Antimony sulfide mainly used to make matches and fireworks, all kinds of antimony salts and colored glasses. The rubber industry is used as a vulcanizer and military workers. It can also be used as an optoelectronic material, which has a good application prospect in the field of solar cells, photochemical chemistry. Manufacture of fireworks, glass, explosives, paint pigments.

Storage Condition of Antimony Sulfide Sb2S3 Powder:
Damp reunion will affect Sb2S3 powder dispersion performance and using effects, therefore, Antimony Sulfide Sb2S3 Powder should be sealed in vacuum packing and stored in the cool and dry room, Antimony Sulfide Sb2S3 Powder can not be exposure to air. In addition, the Antimony Sulfide Sb2S3 Powder should be avoided under stress.

Packing & Shipping of Antimony Sulfide Sb2S3 Powder:
We have many different kinds of packing which depend on the Antimony Sulfide Sb2S3 Powder quantity.
Antimony Sulfide Sb2S3 Powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Antimony Sulfide Sb2S3 Powder shipping: could be shipped out by sea, by air, by express, as soon as possible once payment receipt.

2023-01-03

Sulfide Powder

Chromium Sulfide Cr2S3 Powder CAS 12018-22-3

Properties of Chromium Sulfide
 

English alias: chromium trisulphide; chromic sulphide; Chromiumsulfidebrownblackpowder; chromium(3+) sulfide (2:3)
EINECS: 234-638-8
Chromium sulfide Molecular formula: Cr2S3
Chromium sulfide Molecular weight: 200.17
Details of Chromium sulfide: brown, there are two kinds of trigonal and orthorhombic.
Chromium sulfide Density (g/mL, 25/4 ° C): 3.972 g/cm 3 (trigonal system), 3.922 g/cm 3 (orthorhombic system)
Chromium sulfide Solubility: insoluble in water.

About Chromium Sulfide Cr2S3 Powder :
Chromium sulfide powder is an inorganic compound formulated as Cr2S3.
What is the name of Cr2S3? 
Chromium sulfide is a brown-black solid insoluble in water.
Is chromium sulfide an ionic compound? 
Chromium(III) Sulfide is the inorganic compound with the formula Cr2S3. Chromium sulfides are usually nonstoichiometric compounds, with formulas ranging from CrS to Cr0.67S (corresponding to Cr2S3). Chromium sulfide is usually a non-stoichiometric compound with molecular formulas ranging from Crs to Cr0.67 (corresponding to Cr2S3). According to X-ray crystallography, chromium sulfide is a combination of nickel arsenide (1:1 stoichiometric ratio) and cadmium (OH)2(1:2 stoichiometric ratio). The Cr-Cr distance of some metal-metal bonds is 2.78 A. Feel free to send an inquiry to get the latest price if you would like to buy Chromium Sulfide Cr2S3 Powder in bulk. 
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How is Chromium Sulfide Cr2S3 powder produced?
Chromium sulfide is a moderately water-soluble and acid-soluble chromium source, compatible with sulfates. Sulfate is a sulfate or ester formed by replacing one or two hydrogens with a metal. Most metallic sulfate compounds are readily soluble in water and used for purposes such as water treatment, unlike fluorides and oxides which tend to be insoluble in water. Organometallic forms are soluble in organic solutions and sometimes in water and organic solutions.
Chromium sulfide (III) can be prepared by reacting a stoichiometric mixture of chromium powder and sulfur powder elements at 1000°C.
Or by taking chromium and sulfur according to the molar ratio of 2∶3 mixed, heated in vacuum 1 day later, cooling, crushing, and then heating in vacuum, and slowly cooling.Cr2S3 is obtained by placing it briefly at 300℃ and then cooling it to room temperature.
 
Applications of Chromium Sulfide Cr2S3 Powder:
Chromium sulfide in water will undergo a double hydrolysis reaction to produce chromium hydroxide and HS-, and even H2S.

Storage Condition of Chromium Sulfide Cr2S3 Powder:
The damp reunion will affect Cr2S3 powder dispersion performance and using effects, therefore, Chromium Sulfide Cr2S3 Powder should be sealed in vacuum packing and stored in a cool and dry room, the Chromium Sulfide Cr2S3 Powder can not be exposure to air. In addition, the Cr2S3 powder should be avoided under stress.

Packing & Shipping of Chromium Sulfide Cr2S3 Powder:
We have many different kinds of packing which depend on the Chromium Sulfide Cr2S3 Powder quantity.
Chromium Sulfide Cr2S3 Powder packing:vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Chromium Sulfide Cr2S3 Powder shipping: could be shipped out by sea, by air, by express, as soon as possible once payment receipt.

 

2022-12-25