... and competitive price. Sodium silicate is mainly used silicates products such as silicate gel, precipitated silica, sodium metasilicate,silica sol, powdery sodium silicate, in light industry ... weave industry, machine industry, construction industry etc.Specification:Soluble Solids (Na2SiO3): 99% minFe2O3: 0.014% maxAl2O3: 0.17% maxMgO: 0.03 ... -2.1, 2.2-2.5,3.3-3.5 Sodium Silicate Solid