Tag: nano powder

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    Are there any prohibited items that should be paid special attention to when sending international express?

    Prohibited goods include 1. These include explosives, flammables, toxics, acids-bases and radioactive items such as firecrackers, gasolines, alcohols, kerosenes, tung oils, lacquers, matches, pesticides and more. The "Practical Handbook of Dangerous Chemistries" published by Industry Press lists all the dangerous chemicals in the Chemical Products section.
    2. Narcotics such as morphine, opium and cocaine (Kogan) are psychotropic substances. Items that are prohibited from being circulated or delivered by national laws such as guns, foreign or domestic currencies, etc. ;
    3. Perishable items and all types of live animals including fresh fish, meat, etc. ).
    4. Items that harm public health include bones (including incinerated ones), animal skins which have not yet been nitrated as well as animal bones made without medicine.
    5. Reactionary publications, books or windows, or materials that are obscene, etc.
    6. If you want to know more about the Chemical Product If the item you're sending isn't listed in "Practical Handbook of Dangerous Chemistries", you will need to provide an identification document issued by the local first level chemical product identification department. This certificate confirms the product in question is a non-hazardous chemist. Mail, it is the responsibility of the relevant appraisal department to provide the results. Tongrun supplies you with nanopowder material. Consultations are available at any time if you have questions about which powders you can mail. In addition, the company operates an import and export business for nanomaterials. Click here to access the following information: brad@ihpa.net

    These are the specific classifications
    (1) Valueds: gold bricks, coins, silver bars and platinum.
    (2) Checks, cash, credit cards or phone cards; blank travel tickets; non-cash tickets
    3) Antiques and handicrafts such as Ming Dynasty ceramics and exquisite glass.
    (4) Medical specimens: diagnostic samples (blood samples, urine samples and human tissues).
    (5) A variety of dangerous goods, including those that are inflammable or explosive, toxic, acid-base, and radioactive. Matches (both liquid and solid), detonators (gunpowder), firecrackers; gasoline, kerosene; alcohols (liquids and solids); sulfuric, hydrochloric, and nitric acids.
    All forms of narcotic drugs, psychotropic substances and potent poisons. As arsenic or opium.
    (7) Items that are prohibited by law. Including cultural relics and weapons.
    Newspapers, books and pictures that are obscene, reactionary or offensive. Audio-visual products such as laserdiscs, computer disks, compact discs, DVDs, VCDs.
    Obstructing public access. Animal skins, including burned ones, and animal bones, which haven’t been medicated.
    Animals, plants, and their specimens.
    (10) Unrecognisable white powder
    (12) Liquids: seafood, alcoholic beverages (beer, liquor, etc. ), liquids, etc.
    (13) Fragile products: glass products
    Pornography, gambling and drugs are also prohibited. Guns, knives etc. All of the above is not permitted. Those products that are not illegal can be mailed through couriers to other countries.

    Where can you buy high-quality Nano-powder Materials?
    (aka. Technology Co. Ltd., a reputable global chemical supplier & manufacturer has over 12 years experience in providing high-quality Nanomaterials and chemicals. Currently, we have developed a successful series of powdered materials. Our OEM service is also available. If you're looking for Nano Silver powder , Contact us. Please contact us. Needed products Send us a message.

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    Is Lead Carbonate Soluble in Water?

    Lead carbonate, PbCO3, is a mineral composed of orthorhombic crystals. It decomposes at about 315degC, producing toxic fumes and reacting violently with fluorine to produce a fire hazard.

    Lead is a toxic metal and can cause severe health problems, including comas or death in children. It is also thought to cause hearing loss and IQ problems in children.

    Water soluble leads include lead(II) acetate, lead(II) carbonate, and lead metaborate (Pb(CO3)22-). These are important industrial chemicals used in the production of colored glazes, white house paints, and tin-lead plating applications.

    Various sets of batch dissolution experiments have been conducted to investigate the impact of pH values ranging from 7.0 - 9.5, temperatures (5@C vs. 20@C) and alkalinity levels (moderate vs. low) on the solubility of lead species in drinking water.

    The results of these experiments have shown that pH ranging from 7.0 to 9.5 has no significant influence on the dissolution of lead species. In addition, cold temperature and moderate alkalinity showed a great influence on decreasing the solubility of lead species.

    Inhalation of lead carbonate can lead to a variety of health problems such as respiratory tract irritation, sore throat, and lead lines in the gums. Exposure to lead can also be a serious health risk for pregnant women. It can have long-term effects such as lowered IQ, behavioral disorders, and seizures.

    Products Category


    Innovative materials

    Cement foaming agent, also known as foaming concrete foaming agent, refers to an admixture that can reduce the surface tension of liquid and generate a large amount of uniform and stable foam for the production of foamed concrete. Foaming agent is a kind of substance that can make its aqueous...

    Molecular sieves

    Molecular sieve is a synthetic hydrated aluminosilicate (zeolite) or natural zeolite with the function of screening molecules.Zeolite molecular sieve has a complex and changeable structure and a unique pore system, and is a catalyst with excellent performance. Uses of Molecular Sieves Molecular sieve is mainly caused by molecular attraction, which...

    Surfactant

    Any substance that dissolves in water and can significantly reduce the surface energy of water is called a surface active agent (surface active agent, SAA) or surface active substance. Surfactants reduce the surface tension of water by adsorbing at the gas-liquid two-phase interface, and can also reduce the oil-water interfacial...

    Lithium Battery Anode

    Lithium battery anode material are generally divided into carbon-based negative electrodes and non-carbon-based negative electrodes. Among them, carbon-based negative electrodes can be divided into graphite, hard carbon, and soft carbon negative electrodes. Graphite can be divided into artificial graphite, natural graphite, and mesocarbon microspheres; non-carbon The negative electrode includes lithium...

    MAX Phase

    The MAX phase is a new type of ternary layered compound, which is composed of three elements, M, A and X, and its general chemical formula is MN+1AXN, (wherein, M: pre-transition metal, A: Group A element, X: Carbon or nitrogen, N=1, 2, 3…), both metal materials (excellent electrical and thermal...

    Metal Alloy

    Alloy is a mixture with metallic properties synthesized by two or more metals and metals or non-metals by certain methods. Generally obtained by fusion into a homogeneous liquid and solidification. According to the number of constituent elements, it can be divided into binary alloys, ternary alloys and multi-element alloys. Two...

    Nanoparticles

    Nanometer-scale structural materials are referred to as nanometer materials for short, which refer to the size of their structural units ranging from 1 nanometer to 100 nanometers. Since its size is close to the coherence length of electrons, its properties are greatly changed due to the self-organization brought about by...

    Stearic Acid Series

    Stearic acid, namely octadecanoic acid, molecular formula C18H36O2, is produced by the hydrolysis of oil and is mainly used to produce stearate. Dissolve each gram in 21ml of ethanol, 5ml of benzene, 2ml of chloroform or 6ml of carbon tetrachloride. Applications of Stearic acid Mainly used in the production of...

    Selenide Powder

    There is a typical antagonism between selenium and metals, and selenium with different valences can combine with metal ions to form metal selenides. Metal selenides have attracted much attention in recent years due to their excellent optoelectronic and catalytic properties, and have potential applications in solar cells, pollutant degradation, and...

    Telluride Powder

    Tellurium is a typical scattered element. Tellurium and its compounds are widely used in metallurgy, chemical industry, electronics, energy, medicine and health and other industries.Telluride is a compound of tellurium with a metal or a non-metal. Such as the representative of the telluride with a non-metal is hydrogen telluride, which...

    Silicide Powder

    Binary compounds formed by certain metals (such as lithium, calcium, magnesium, iron, chromium, etc.) and some non-metals (such as boron, etc.) and silicon. Generally crystalline, with metallic luster, hard and high melting point. Uses of Silicide Powder Metal silicide as an electric heating element is one of its earliest applications....

    Nitride Powder

    Nitride is similar to metal in appearance, hardness and conductivity, and generally has high hardness, high melting point, stable chemical properties, and electrical conductivity. Such as titanium nitride, vanadium nitride, zirconium nitride, tantalum nitride, etc. is hard and refractory, and has the characteristics of chemical corrosion resistance and high temperature...

    Carbide powder

    Carbide powder is a binary compound formed by carbon (other than hydrogen) which is smaller or similar to electronegativity. Carbides have a higher melting point. Most carbides are carbon and metal at high temperatures. The next reaction is obtained. The properties of the element are divided into metal carbides and...

    Oxide Powder

    Oxide powder is the chemical compound solid powder contains one oxygen and another element, such as metal oxides, metal oxides are a chemical compound formed between metals, specifically cations such as Na, K, Li, etc., and oxygen. These compounds require at least of two elements, as compounds do, and always...

    Sulfide Powder

    Sulfide powder refers to the chemical compounds powder with large families of inorganic and organic compounds, e.g. copper sulfide, Zinc sulfide, molybdenum disulfide, tungsten disulfide powders and so on. Sulfides and their similar compounds include a series of metals and semi-metallic elements combined with S, Se, Te, As, Sb, Bi...

    3D Printing Powder

    3D Printing powder are metal powders that are reduced to fine particles. 3D printing metal powder are the the preliminary base materials for most 3D printing processes that produce metallic parts. 3D printing, also known as additive manufacturing (AM), is the manufacturing of parts and products in a layer-by-layer fashion....

    Boride Powder

    Metallic boride powders are very unique but functional new ceramic materials.The boride powders have many advantages such as high melting point, high hardness, good electrical conductivity and thermal conductivity. Therefore, boride powder can be used as heat-resistant and hard materials that can be accurately processed by electric discharge machining. Such...

    Elementary

    Elementary substance is a pure chemical substance that consists of atoms belonging to a single chemical element, it is widely used in many industrial fields. Are you looking for high purity & quality elementary substance such as hafnium diboride powder, zirconium diboride powder, aluminum diboride powder, magnesium diboride powder? Biomedicalmaterialsprogram...

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