High purity Ammonium Metatungstate is an inorganic compound with specific purity and quality requirements.
Definition of High Purity Ammonium Metatungstate
High purity ammonium metatungstate is a crystalline powder with a white and slightly yellowish appearance, which is an important intermediate compound in the tungsten wet smelting process, and is also one of the tungsten catalysts. The active component of this catalyst is tungsten trioxide (WO3), which is often used as catalyst carrier.
Chemical formula of high-purity ammonium metatungstate
(NH₄)₆H₂W₁₂O₄₀-xH₂O (where x denotes the amount of water of crystallization)
Molecular weight of high-purity ammonium metatungstate
Approx. 2974.32 (the exact value may vary depending on the number of water of crystallization)
Physical properties of high purity ammonium metatungstate
Appearance of high purity ammonium metatungstate
White slightly yellow crystalline powder
Solubility of high-purity ammonium metatungstate
Soluble in water, but insoluble in organic solvents such as ethanol.
Chemical properties of high purity ammonium metatungstate
Stability of high purity ammonium metatungstate
High purity ammonium metatungstate has high thermal stability and can withstand certain high temperature.
Catalytic properties of high-purity ammonium metatungstate
As a kind of tungsten catalyst, high purity ammonium metatungstate shows good catalytic performance in petrochemical, fine chemical and other fields.
Application areas of high purity ammonium metatungstate
Catalyst Preparation
High purity ammonium metatungstate is the main raw material for tungsten-based catalysts in oil refineries, and is used in the manufacture of various petrochemical catalysts, such as hydrogenation catalysts, dehydrogenation catalysts, etc.
Preparation of metallic tungsten and tungsten alloy
As an important raw material for manufacturing metallic tungsten and its alloys, high-purity ammonium metatungstate is widely used in aerospace, electronics, military and other fields.
Ceramics Industry
In the ceramic industry, high-purity ammonium metatungstate can be used as an additive for ceramic glaze and pigment to improve the performance and appearance of ceramic products.
Scientific research
In the field of chemistry and material science research, high purity ammonium metatungstate also has important application value.
Preparation method of high purity ammonium metatungstate
There are various methods for the preparation of high purity ammonium metatungstate, including ion exchange method, neutralization method, thermal degradation method, liquid-liquid extraction method, electrodialysis method, as well as acidolytic alcoholysis method, etc. The choice of these methods depends on the specific production of ammonium metatungstate. The choice of these methods depends on the specific production requirements and process conditions.
Quality standard of high purity ammonium metatungstate
The quality standard of high purity ammonium metatungstate mainly includes the requirements of purity, impurity content, particle size distribution, bulk density, moisture and so on. Manufacturers need to strictly control these indexes in the production process to ensure the stability and reliability of product quality.
Safety Precautions for High Purity Ammonium Metatungstate
High purity ammonium metatungstate needs to pay attention to safety in the process of use, avoid contact with skin, eyes and other parts of the body, and prevent accidental ingestion. At the same time, attention needs to be paid to moisture-proof, fire prevention and other measures during storage and transportation to ensure safety.
More details of ammonium metatungstate product, please visit website: http://ammonium-metatungstate.com/
Please contact CHINATUNGSTEN for inquiry and order of ammonium metatungstate:
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