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Ammonium paratungstate application is always the focus as it is an important intermediate for producing different tungsten products. Ammonium paratungstate (APT) is mainly used for the preparation of tungsten trioxide (WO3), blue tungsten oxide (W20O58/WO2.9) or metal tungsten powder. More details, please visit: http://ammonium-paratungstate.com/index.html Ammonium Paratungstate Applications APT can even be used for the production of metal tungsten powder downstream products, such as tungsten wire, tungsten bar and other electric vacuum materials, or alloyed products such as tungsten carbide blades,…

What is ammonium paratungstate? Ammonium paratungstate, APT for short, is white, finely divided crystals, with the chemical formula (NH4)10(W12O41) · 5H2O. It is soluble in water and insoluble in alcohol. It is produced by evaporation of purified ammonium tungstate solution to obtain pure paratungstate crystals. Controls of time, temperature, concentration, and pH, determine the quality and physical characteristics of the APT crystals. More details, please visit: http://ammonium-paratungstate.com/index.html Ammonium paratungstate is used as a source for high-purity tungsten oxides, tungsten metal…

Tungsten alloy radiation shielding is an excellent way to protect doctors, nurses, patients and their family members against radiation. It means that tungsten alloy can shield radiation. You know, there are three main methods of radiation protection. They are time protection, distance protection and shielding protection. Wherein, the main point of shielding protection is to place a shielding material that can effectively absorb radiation between the radiation source and the human body. More details, please visit: http://www.tungsten-alloy.com/tungsten-alloy-radiation-shielding.html As a traditional…

The researchers used tungsten hexachloride (WCl6) and tributyl phosphate to synthesize a new near infrared absorbent. The obtained near-infrared absorber has the advantages of high visible light transmittance, strong near-infrared absorption, and good stability to light and heat. And the researchers also used the near-infrared absorber as a colorant and methyl methionate as a matrix to prepare a new near-infrared filter plastic product with stable near-infrared absorption performance. More details, please visit: http://tungsten-hexachloride.com/index.html Preparation of A New Near Infrared Absorbent…

Hydrogen reduction is the earliest method for preparing rare metals such as tungsten and molybdenum. And the hydrogen reduction of tungsten hexachloride is the most noticeable method in the preparation of ultrafine tungsten powder at home and abroad. More details, please visit: http://tungsten-hexachloride.com/index.html Some researchers used metal tungsten powder as a raw material to heat the reactor under the condition of passing hydrogen. The temperature of the chlorination section was heated to 800 °C for heat preservation and the reduction…

The researchers proposed a method for preparing high purity tungsten hexachloride, which requires the following steps: raw material pretreatment, tungsten hexachloride preparation, tungsten hexachloride refining, condensation reception and tail gas treatment. More details, please visit: http://tungsten-hexachloride.com/index.html A Preparation Method of High Purity Tungsten Hexachloride Step One: Raw material pretreatment. Screening or sintering to obtain large particle size tungsten powder (> 75um), chlorine gas is preheated while purifying, the temperature rises to 600-1000 °C, screening large particle size activated carbon (>…

What is tungsten hexachloride? Tungsten hexachloride is the chemical compound of tungsten and chlorine with the formula of WCl6. It shows dark blue or blue violet appearance, and exists as a volatile fine powder under standard conditions. More details, please visit: http://tungsten-hexachloride.com/index.html Tungsten hexachloride is a blue-black solid at room temperature. At lower temperatures, it becomes wine-red in color. A red form of the compound can be made by rapidly condensing its vapor, which reverts to the blue-black form on…

Tungsten carbide milling tool, also called tungsten carbide milling cutter, is a cutting tool typically used in milling machines or machining centers to perform milling operations. It removes material by its movement within the machine or directly from the cutter’s shape. It is mainly used for machining planes, steps, grooves and forming surfaces on PCB boards, bakelite boards, plastics, wood, etc. Well, do you know why tungsten carbide milling tool breaks? More details, please visit: http://www.tungsten-carbide.com.cn/tungsten-carbide-blade-bar.html Tungsten carbide milling tool…

Do you know what the English letters and numbers in the model of tungsten carbide thread insert mean? Let’s take 17NR8-3RD as an example to understand the type of a tungsten carbide thread insert. More details, please visit: http://www.tungsten-carbide.com.cn/tungsten-carbide-blade-bar.html In the picture above: ①—Indicates the blade geometry and size, and its value is the positioning side length of blade. ②—Indicates the characteristics of blade threads, wherein, N represents the internal thread insert, and E represents the external thread insert. ③—Indicates…

High purity ammonium metatungstate is a water soluble crystalline powder with white or yellowish appearance. It is an important intermediate compound in the tungsten wet smelting process. Also, it is one of tungsten catalysts. The active component of ammonium metatungstate (AMT) catalyst is tungsten trioxide (WO3), which is used as a catalyst carrier. With the vigorous development of the petroleum processing industry, the research, development and application of high purity ammonium metatungstate have also been directly promoted. More details, please…