What Is Sodium Silicate?
Commonly known as Soak [1] alkali, is a water-soluble silicate, and its aqueous solution is commonly called water glass, which is a mineral binder. Its chemical formula is R 2 O · nSiO 2 , where R 2 O is an alkali metal oxide, and n is a ratio of the number of moles of silicon dioxide to the number of alkali metal oxides, which is referred to as the molar number of water glass. Water glass commonly used in construction is an aqueous solution of sodium silicate. (Na 2 O · nSiO 2 )
- Upstream raw materials: 1,4-
- This product is not regulated.
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- 1. There are two types of sodium silicate, one is
- There are two production methods of sodium silicate: dry method (solid phase method) and wet method (liquid phase method).
- 1. Dry production is to mix quartz sand and soda ash in a certain ratio and then heat it to about 1400 in a reflection furnace to produce molten sodium silicate;
- 2. Wet production uses quartzite powder and caustic soda as raw materials. In a high-pressure steamer, it reacts under 0.6-1.0 MPa steam to directly produce liquid water glass. Micro silicon powder can replace quartz ore to produce sodium silicate with a modulus of 4. [4]