sodium silicate

sodium silicate noun Chemistry.

1. any of several clear, white, or greenish water-soluble compounds of formulas varying in ratio from Na2O⋅3.75SiO2 to 2Na2O⋅SiO2: used chiefly in dyeing, printing, and fireproofing textiles and in the manufacture of paper products and cement.

Also called liquid glass, water glass. British Dictionary definitions for liquid glass sodium silicate noun

1. Also called: soluble glass a substance having the general formula, Na 2 O. x SiO 2, where x varies between 3 and 5, existing as an amorphous powder or present in a usually viscous aqueous solutionSee water glass (def. 1)
2. any sodium salt of orthosilicic acid or metasilicic acid