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Lithium Tungstate 343

Lithium tungstate is a kind of colorless triangular crystal with BeSiO3 crystal lattice. It is easily soluble in water and insoluble in ethanol. It is easy to decompose in acid. Its CAS No. is 13568-45-1. Molecular formula is Li2OW4. Molecular weight is 261.72000. Density is 3.71g/mL (25/4 °C). Li2OW4 can be prepared by dissolving WO3 in Li (OH) or Li2CO3 solution. Li2OW4 is stable under room temperature and pressure. But, it should also avoid light, fire and high temperature. It…

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Tungsten Silicide 345

Tungsten silicide is an odorless blue-gray tetragonal crystal that dissolves in a mixture of nitric acid and hydrofluoric acid. But, it is insoluble in water and aqua regia. Its CAS No. is 12039-88-2, and molecular formula is Si2W, molecular weight is 240.01100, the melting point is 900°C, and the density is 9.88g/cm3. Tungsten silicide can be applied to produce anti-oxidation coating layer and the resistance wire poultice. Producing Method 1. Mix W powder and Si powder under mole ratio 1:2,…

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Cesium Tungstate 362

Cesium tungstate, also known as cesium tungsten oxide, is a colorless crystal with strong hygroscopicity. It can be prepared by the reaction of cesium chloride (CsCl) with silver tungstate (Ag2WO4). Its chemical formula is Cs2WO4, the molecular weight is 513.64900, and the CAS number is 13587-19-4. The phase transformation of Cs2WO4 occurs at 536°C, transition from orthorhombic crystal to hexagonal crystal. Hazard 1. Usually, it is slightly harmful to water. Cs2WO4 can be soluble in water and react with acid…

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Cesium Tungsten Bronze 656

Cesium tungsten bronze is a blue-black powder with specific structure of oxygen octahedral. Its particle size is uniform and crystallinity is high. Its formula is CsxWO3. Properties 1. Easily dispersed in polar and non-polar solvent. 2. With low resistivity and low temperature superconductivity property. 3. Good glass thermal insulation performance. 4. Excellent electrical and optical properties with the near infrared blocking rate up to 95% (Transmittance of visible light is 70%). Good absorption for far infrared region. Preparation Cesium tungsten…

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Metal Tungsten Carbide Powder 370

Metal tungsten carbide powder has a good conductive thermal conductivity and high melting point. It is an important raw material for the preparation of tungsten carbide, which can be heated by a mixture of tungsten and carbon. Preparation Metal tungsten carbide powder can be heated by a mixture of tungsten and carbon, and the presence of hydrogen or hydrocarbons can accelerate the reaction. If use oxygen containing compounds in the preparation of tungsten, vacuum products must eventually in 1500 ℃,…

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Supermicro Tungsten Carbide Powder 355

Supermicro tungsten carbide powder as a “micro-tungsten particle bullet”, due to fine particles, permeability, good dispersion, bio-genetic engineering provides a new and effective method, can be prepared by one-step reduction carbonization. Preparation In the preparations of supermicro tungsten carbide powder, one step reduction carbonization method can be used in addition to the traditional process. One-step reduction carbonization method is a method suitable for industrial scale production, using the precursor powder containing tungsten as a direct step to restore carbonized tungsten…

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Micron Tungsten Carbide Powder 343

Micron tungsten carbide powder has excellent wear resistance and high temperature oxidation resistance. It is widely used in traditional applications and high-tech fields. Application Due to its special properties and uses, it also plays an important role not only in traditional applications but also in high-tech fields. Ultrafine cemented carbide is made of micron tungsten carbide powder with high toughness, high strength, high hardness and high wear resistance. In addition to processing into a sharp edge for the processing of…

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Superfine Tungsten Carbide Powder 407

Superfine tungsten carbide powder has good compatibility, which can improve the sharpness of the tool, and it can be prepared by one-step reduction carbonization method. Characteristic Superfine tungsten carbide powder has good compatibility with iron, copper, cobalt and nickel, which can increase the wear resistance of the tire body, reduce the variation of the matrix, and improve the sharpness of the tool. Preparation Compared with the traditional process, a one-step reduction carbonization method is used to prepare superfine tungsten carbide…

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Fine Particle Tungsten Carbide Powder 437

Fine particle tungsten carbide powder has smaller particle size, high specific surface area and good catalytic activity. It can replace precious metal as catalyst, but also can be used as raw material for the production of tungsten carbide. Particle The main influencing factors of fine particle tungsten carbide powder are the particle size and the composition of the tungsten powder. Due to the carbonization process is mainly achieved by the reaction of the surface of the tungsten powder particles with…

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Nanometer Tungsten Carbide Powder 406

Nanometer tungsten carbide powder is a kind of tungsten carbide powder with a particle size <100nm, which has the properties of the abnormal tungsten carbide powder. It can make the tungsten carbide with more excellent properties. Particle When the particle size of the tungsten carbide powder varies greatly, the characteristic of the powder is obviously different. Especially when the particle size reaches the nanometer level, it often shows the abnormal performance of the conventional tungsten carbide powder. Applications Nanometer tungsten…

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