Ammonium tungsten oxide hydrate, also known as tungsten ammonium oxide hydrate, has a series of unique properties, which make it widely used in several fields. The following is a detailed summary of the properties of tungsten ammonium oxide hydrate:
- Physical properties of tungsten ammonium oxide hydrate
Appearance and morphology of tungsten ammonium oxide hydrate
Tungsten ammonium oxide hydrate usually appears as white crystalline powder. This property makes it easy to recognize visually and suitable for occasions where white powdery material is required.
Solubility of tungsten ammonium oxide hydrate
The substance is soluble in water but insoluble in alcohols. This difference in solubility is of great importance during preparation and use, for example, this property can be easily utilized when it is necessary to dissolve it in water for a reaction or treatment.
Density and melting point of tungsten ammonium oxide hydrate
In terms of density, the exact value may vary depending on the test conditions or the water of crystallization content, but it is usually high, e.g. 19.3 g/mL (25°C) as mentioned in some literature.
In terms of melting point, since tungsten ammonium oxide hydrate decomposes when heated, its melting point is usually described as the decomposition temperature, e.g. 100°C (decomposition) (literature data).
Other physical properties of tungsten ammonium oxide hydrate
Specific data such as boiling point, refractive index, flash point, etc. may not be given in the available literature, but some possible physical properties can be inferred based on its crystal structure and chemical composition.
Second, the chemical properties of tungsten ammonium oxide hydrate
Properties of tungsten ammonium oxide hydrate in aqueous solution
Tungsten ammonium oxide hydrate may exhibit certain acidity or alkalinity in aqueous solution, depending on its molecular structure and solution conditions. However, in general, it may be more inclined to exhibit weak acidity.
Reactivity of tungsten ammonium oxide hydrate
Due to the presence of reactive groups such as tungsten, oxygen and ammonium ions, tungsten ammonium oxide hydrate has the ability to react with other chemicals. It can react with acids, bases or metal ions, etc. to form new compounds.
Stability of tungsten ammonium oxide hydrate
At room temperature and pressure, tungsten ammonium oxide hydrate is relatively stable. However, it should avoid light, open flame and high temperature which may trigger its decomposition or deterioration.
Third, the use of tungsten ammonium oxide hydrate
Tungsten ammonium oxide hydrate has important application in catalyst preparation, which is one of the main raw materials of tungsten-based catalysts in oil refineries, and is widely used in petroleum hydrocracking, lubricating oil hydrotreating, desulfurization, denitrogenation and other processes.
In the field of material science, it can be used in the preparation of surface coatings of various metal products and hard alloys, etc., in order to improve the corrosion and wear resistance of materials.
In addition, tungsten ammonium oxide hydrate can also be used in biochemical research in certain experiments and reaction conditions control, as well as the preparation of other tungsten compounds, lubricants, corrosion inhibitors and other chemicals.
- Safety information of tungsten ammonium oxide hydrate
When using tungsten ammonium oxide hydrate, attention should be paid to the irritation and other potential dangers it may bring. Appropriate protective gear should be worn and relevant safety operation 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.
Tungsten ammonium oxide hydrate has unique physical and chemical properties as well as a wide range of applications. During use, its properties and safety information need to be fully understood to ensure the safe and effective utilization of this important chemical substance.
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