Sodium silicate, also known as water glass, is formed by the reaction of sodium carbonate (washing soda) and silicon dioxide (a main component of sand). We use this ingredient in our dishwasher and laundry detergents to soften hard water, prevent corrosion in machines and improve the durability and effectiveness of the detergent granules. Sodium silicate is generally regarded as safe for use in household cleaning products when handled according to recommended guidelines. Direct contact with the skin or eyes should be avoided, and proper precautions should be taken during handling and storage.

Other names: Water Glass, Sodium Metasilicate, Silicon Sodium Oxide, Silicic Acid, Sodium Salt

Chemical class: Inorganic Salts

REFERENCES

National Center for Biotechnology Information (2024). PubChem Compound Summary for CID 23266, Sodium silicate. https://pubchem.ncbi.nlm.nih.gov/compound/Sodium-silicate