sodium silicate

noun

Chemistry.

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

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 solution See water glass

2. any sodium salt of orthosilicic acid or metasilicic acid