Ammonium Metatungstate (AMT) is a crystalline powder that appears white or yellow and can be dissolved in water. In chemical and industrial fields, Ammonium Metatungstate has many specifications, among which “Analytically Pure” is one of the purity levels, which is mainly used in laboratory analysis, scientific research and the preparation of high-purity products.
- Basic Properties of Analytically Pure Ammonium Metatungstate
Appearance: white or light yellow crystalline powder.
Solubility: soluble in water, insoluble in alcohol.
Chemical formula: The common molecular formula is (NH4)6(H2W12O40)-nH2O, where n indicates the number of water of crystallization, which may vary according to the preparation conditions.
Molecular weight: The molecular weight of anhydrous ammonium metatungstate is about 3060.46.
- Characteristics of analytically pure ammonium metatungstate
High purity: Ammonium metatungstate of analytically pure grade has relatively high purity, which is usually used in occasions requiring precise analysis or high-purity raw materials.
Low impurity content: Compared with other specifications, the impurity content in analytically pure ammonium metatungstate is lower to minimize the impact on experimental results or product quality.
Stability: Analytically pure grade products usually have better stability to ensure that their performance remains unchanged during storage and use.
Production process of analytically pure ammonium metatungstate
There are various production processes of ammonium metatungstate, 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 requirements and conditions. For analytically pure grade of ammonium metatungstate, its production process may require more delicate control and purification steps to ensure the purity and quality of the product.
Application fields of analytically pure ammonium metatungstate
Ammonium metatungstate has a wide range of applications in many fields, including electronics, metallurgy, fertilizer and so on. Analytically pure grade of ammonium metatungstate is mainly used in laboratory analysis, scientific research and industrial fields which need high purity raw materials. For example, in the electronic industry, it can be used to manufacture film capacitors, piezoresistive materials and other important materials for electronic components; in the metallurgical industry, it can be used as the precursor raw material for the production of high-purity tungsten products; in the fertilizer industry, it can be used for the production of ammonia synthesis catalysts and so on.
- Precautions for analyzing pure ammonium metatungstate
When using analytically pure ammonium metatungstate, relevant safety operation regulations and precautions should be observed. Since it may be irritating and corrosive, appropriate protective gear should be worn during use and ensure operation in a well-ventilated environment. Meanwhile, the waste after use should be disposed of in accordance with relevant laws and regulations to ensure the safety of personnel and the environment.
Ammonium metatungstate analytical pure is a kind of high-purity chemical reagent with wide application fields and important scientific value. In the process of use, relevant safety operation regulations and precautions should be strictly observed to ensure the accuracy of experiments and the safety of personnel.
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