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Explanation of cryolite related knowledge Time:2022-04-15   View:230

1) Molecular formula: Na3AlF6

2) Molecular weight: 209.94

3) Properties: cryolite is a crystalline white powder. It is slightly soluble in water, with a density of 2.95 ~ 3 and a melting point of about 1000 ℃. It is easy to absorb water and damp. It can be decomposed by strong acids such as sulfuric acid and hydrochloric acid to produce hydrofluoric acid and corresponding aluminum and sodium salts.

4) Application: it is mainly used as flux for electrolytic aluminum, pesticide for crops, flux for enamel and glaze, wear-resistant filler for resin and rubber, electrolyte for ferroalloy boiling steel production and ingredient for grinding wheel, etc.

5) Technical indicators: in accordance with the national standard GB / t4291-1999


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