Tungsten Oxide

  What Is Tungsten Hexachloride? Tungsten hexachloride is a compound of tungsten and chlorine, the English name is tungsten hexachloride, the chemical formula is WCl6, and the molecular weight is 396.61. Under normal circumstances, the content of tungsten is not less than 46%, and the content of chlorine is not less than 53%. Physical and Chemical Properties of Tungsten Hexachloride: Appearance is dark blue or blue-purple fine-crystalline powder, easily soluble in carbon disulfide, soluble in ether, ethanol, benzene, carbon tetrachloride, easily decomposed by hot water, and oxidized by oxygen in the air to form tungsten oxychloride or tungsten oxychloride when heated. Tungsten oxide, and WCl6 containing tungsten oxychloride is easily decomposed by water vapor, and is reduced by hydrogen under high temperature conditions to precipitate tungsten powder. Production Process of Tungsten Hexachloride: 1) Pretreatment of raw materials. The large particle tungste...

What is Sodium Tungstate? Sodium tungstate is a tungstate of sodium, chemical formula is Na2WO4•2H2O which is prepared from tungsten ores used to manufacture tungsten by reducing. Application of Sodium Tungstate It is mainly used as production of tungsten oxides. It is also used as catalyst for epoxidation of alkenes and oxidation of alcohols into aldehydes or ketones.It is also used for treatment of diabetes in animal, in the dye and textile industry,intermediate in preparation of tungsten compounds, fire proofing fabrics & cellulose, alkaloid precipitant. More details please visit: http://sodium-tungstate.com/english/index.html Basic Trading Condition Product Name Sodium Tungstate Details WO3 Content: 69%min Quantity:1,000.00KG Price:29.00 USD/KG EXW, XIAMEN, CHINA Payment:T/T in advance Deliv...

Ammonium metatungstate (AMT) can be used as a thermal insulating material due to its unique thermal properties. When AMT is heated, it decomposes to form tungsten oxide, which has excellent thermal stability and a high melting point. This makes it an ideal material for use in high-temperature applications. AMT can be used as a thermal insulating material in a variety of forms, including coatings, fibers, and composites. For example, AMT can be applied as a coating on the surface of a substrate to provide thermal insulation. It can also be used as a filler material in polymer composites to improve their thermal properties. One advantage of using AMT as a thermal insulating material is its low thermal conductivity. AMT has a thermal conductivity of around 0.06 W/m·K, which is much lower than most metals and other common insulating materials. This means that AMT can provide excellent thermal insulation while also being lightweight and easy to handle. Overall, AMT ca...

Ammonium metatungstate (AMT) is a white crystalline powder that is used as a precursor to make tungsten metal and tungsten alloys, as well as a catalyst and a pigment in various industrial applications. AMT is generally considered to be relatively low in toxicity and not a significant environmental hazard, as long as it is handled and disposed of properly. However, as with any chemical, prolonged or excessive exposure can potentially be harmful. In terms of human health, ingestion or inhalation of AMT can cause irritation of the respiratory tract, eyes, and skin. It may also cause gastrointestinal distress, such as nausea, vomiting, and diarrhea. However, the risk of exposure to AMT is generally considered to be low, as it is not commonly found in consumer products or in the environment. In terms of environmental hazards, AMT is not considered to be toxic to aquatic life, but it may have harmful effects on soil microorganisms and plant growth if it is released...

  Ammonium metatungstate (AMT) is a white crystalline powder that is used in the production of tungsten metal, tungsten carbide, and other tungsten compounds. It is a stable compound under normal conditions, but it can decompose at high temperatures or in contact with strong acids or oxidizing agents. Here are some guidelines for the safe storage and handling of ammonium metatungstate: Storage: AMT should be stored in a cool, dry, well-ventilated area away from incompatible materials such as strong acids, oxidizing agents, and combustible materials. The storage area should be clearly labeled and access should be restricted to authorized personnel only. Handling: When handling AMT, wear appropriate personal protective equipment such as gloves, goggles, and a lab coat. Avoid direct contact with skin, eyes, and clothing. AMT should be handled in a fume hood to prevent inhalation of the powder. Use a dust mask or respirator if necessary. Transportation: AMT...

Ammonium metatungstate (AMT) can be synthesized by reacting sodium tungstate with ammonium chloride in aqueous solution, followed by acidification with hydrochloric acid. The reaction can be summarized by the following equation: Na2WO4 + 2NH4Cl + H2SO4 → (NH4)6H2W12O40·xH2O + 2NaCl + 2H2O In this reaction, sodium tungstate (Na2WO4) and ammonium chloride (NH4Cl) are dissolved in water and then mixed together. Sulfuric acid (H2SO4) is added to acidify the solution, which results in the formation of ammonium metatungstate as a precipitate. The precipitate is then filtered, washed, and dried to obtain the final product. The reaction conditions such as temperature, pH, and reactant concentrations can affect the yield and quality of the final product. The synthesis process can also be modified by using different tungsten sources or different ammonium salts. If you have any inquiry of  tungsten , please feel free to contact us: Email:  sales@chinatungsten.co...

  Basic Trading Condition Product Name Lithium Ion Battery Used Nano Tungstic Acid   Details Purity:99.90% Particle Size: 30~50nm Quantity:1,000.00KG Price:70.00 USD/KG EXW, XIAMEN, CHINA Payment:T/T in advance Delivery Time: in 20 working days Note: Re-check when quantity changed Contact Tel.:+86 592 512 9595  +86 592 512 9696 Fax.:+86 592 512 9797 Email: sales@chinatungsten.com Business WeChat: Disclaimer The above quoted price is for reference only and shall not be used for final order. For detailed inquiry please contact us directly!