Sodium silicate, commonly known as pyrophorine, is an inorganic substance, the chemical formula is Na2O�·nSiO2, its aqueous solution is commonly known as water glass, is a kind of mineral adhesive. Its chemical formula is Na2O�·nSiO2, which is a soluble inorganic silicate and has a wide range of uses.
Sodium silicate, commonly known as pyrophorine, is an inorganic substance, the chemical formula is Na2O·nSiO2, its aqueous solution is commonly known as water glass, is a kind of mineral adhesive. Its chemical formula is Na2O·nSiO2, which is a soluble inorganic silicate and has a wide range of uses.
Index Standard Test Method
Modulus 1.95~2.05 ISO 1689
Na2O content by wt % 25~28 ISO 1692
SiO2 content by wt % 48~54 ISO 2124
Na2O + SiO2 content by wt % 78~82 HG/T 4315
Bulk density by g/L 600~800 GB 3603
pH value (1%) 11~12 HG/T 4315
Moisture by wt % 6.5 max HG/T 4315
Insoluble matter by wt % 0.1 max ASTM D501
Iron (Fe) by ppm 100 max ISO 6332
Speed of dissolution (1%) by sec 75 max HT/T 4315
Appearance by visual White granules By visual
Application
1. Sodium silicate powder can be used as quick-drying agent and reinforcing agent for cement.
2. Used as the flocculating settling agent for drilling cuttings, the lost circulation additive for bentonite and cement,and the plugging agent for oil and gas wells. Also used as the binder for refractory materials, such as furnace gunning refractory, castable refractory, etc.
3. Used as the binder for foundry industry and insulation materials, and the thickening agent for oil industry, etc.
4.One of the ingredients of detergent.
