Areas of Use :
Sodium metasilicate is a salt of silicic acid and is classified as an inorganic salt product, and its molecular formula is Na2SiO3. It is a non-toxic, odorless and harmless white powder or crystalline particle. It is soluble in water, but not insoluble in alcohol or acids. Its aqueous solution is alkaline and has hygroscopicity and solubility when in contact with air. It has purifying, emulsifying, dispersing, moisturizing, penetrating and PH buffering properties. Sodium metasilicate is a low molecular weight crystal resulting from the thermal reaction between foaming alkaline and caustic soda water. The products include anhydrous, pentahydrate and nonahydrate compounds.
Among inorganic electrolytes, sodium metasilicate has the highest active alkalinity and PH buffering index. It has strong moisturizing, emulsifying and saponifying effects on oils. It is an excellent method of eliminating, dispersing and suspending impurities and can prevent the re-aggregation of pollutants. It has strong cleaning, buffering and neutralizing abilities, can emulsify oils, anti-flocculant for inorganic substances, protect metals from erosion, can produce detergents and metal cleaning agents instead of sodium tripolyphosphate, thereby reducing the environmental pollution of sodium tripolyphosphate. .
Sodium metasilicate is widely used in laundry detergent, ceramics, coatings, textiles, printing, papermaking, concrete, cement, fireproof materials, oils, leather processing and many other industrial fields. At present, the industries that use it the most are: ceramics, industrial cleaning, laundry detergent, concrete, printing, papermaking, cement, oil mining, etc.