Tungsten ammonium oxide tungsten hydrate is a chemical substance whose detailed explanation is as follows:
- Basic information of tungsten ammonium oxide hydrate
Chinese name
Ammonium tungsten oxide hydrate
English name
Ammonium Tungstate Hydrate, also known as Ammonium Metatungstate Hydrate
CAS No.
12028-48-7 (but please note that different forms or purity of Ammonium Tungsten Oxide Hydrate may have different CAS numbers)
Molecular Formula
H26N6O40W12, 2[HO13W4-].HO10W3-.W.3[HO-].H2O.6[H4N+], etc., where the differences arise from different preparation processes or crystalline water contents.
Molecular weight
The same changes due to different molecular formulas, such as 2956.3026, 2962.35028 and so on.
Physical properties of tungsten ammonium oxide hydrate
Appearance
White crystalline powder
Solubility
Soluble in water, insoluble in alcohol
Melting point
About 100°C (decomposition) (specific values may vary depending on test conditions)
III. Chemical properties of tungsten ammonium oxide hydrate
Tungsten ammonium oxide hydrate may show certain acidity or alkalinity in aqueous solution, depending on its molecular structure and solution conditions. It has the ability to react with other chemical substances, such as reacting with acid, alkali or metal ions to generate new compounds.
Four, tungsten ammonium oxide hydrate uses
Catalyst preparation
Ammonium tungsten oxide hydrate is one of the important raw materials for the preparation of tungsten catalysts, and these catalysts play a key role in industrial processes such as petroleum hydrocracking, lubricant hydrotreating, desulfurization, and denitrogenation.
Materials Science
In the field of material science, tungsten oxide tungsten hydrate can be used in the preparation of surface coatings for various metal products and hard alloys, etc., in order to improve the corrosion and wear resistance of materials.
Biochemical research
In addition, it can be used for certain experiments and reaction conditions control in biochemical research.
- Preparation method of tungsten ammonium oxide hydrate
The preparation methods of tungsten ammonium oxide hydrate are various, including neutralization method, tungstic acid method, thermal decomposition method, solvent extraction method and ion exchange method. The selection of these methods depends on the specific production needs and conditions.
- Safety information of tungsten ammonium oxide hydrate
When using tungsten ammonium oxide hydrate, attention should be paid to the irritation and other potential hazards it may bring. Appropriate protective gear should be worn and relevant safety operating procedures should be followed. Waste after use should be disposed of in accordance with relevant laws and regulations to ensure the safety of personnel and the environment.
In summary, tungsten ammonium oxide hydrate is a chemical substance with multiple uses and properties, and has a wide range of application prospects in many fields. However, due to the complexity of its molecular formula and properties, as well as the different forms and purity differences that may exist, special attention needs to be paid to the relevant safety issues and operational requirements during its use and preparation.
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