What is H2SiF6? Important knowledge about H2SiF6.

1. Define H₂SiF₆

H₂SiF₆, also known as Hexafluorosilicic acid in English, is a chemical compound of Hydrogen, Silicon, and Fluorine. Its molecular weight is 144.09 g/mol. The H₂SiF₆ molecule consists of 2 Hydrogen atoms, 1 Silicon atom, and 6 Fluorine atoms.

1.4 Ion structure: The ions of H₂SiF₆ are [SiF6]2- and [H+].

2. Properties: H₂SiF₆

2.1 Physical properties of H₂SiF₆: H₂SiF₆ can exist in solid or liquid state depending on the temperature and pressure conditions. Its color is usually white and does not have a specific smell. It has strong acidic properties.

2.2 Chemical properties of H₂SiF₆: H₂SiF₆ has the ability to react with various substances such as metals, acids or salts to create different products.

3. Common chemical equations of H₂SiF₆: Due to its strong acidic properties, H₂SiF₆ can react with metals like Na, K, Ca etc. to produce salt and Hydrogen gas. Besides, H₂SiF₆ can also react with other strong acids such as H₂SO₄, HNO₃.

4. Preparation of H₂SiF₆

4.1 Laboratory preparation of H₂SiF₆: Under laboratory conditions, we can prepare H₂SiF₆ by reacting SiO₂ with HF.

4.2 Industrial preparation of H₂SiF₆: In industry, a large amount of H₂SiF₆ is produced as a by-product in the process of manufacturing phosphate fertilizers.