... as ,sodium metasilicate, silica sol, powdery sodium silicate; In light industry, the product is a indispensability raw material to manufacture detergent such ... -resistent cement, waterproof oil, soil curing agent, fire-resistent material,etc.. In agriculture field, the product is applied to manufacture ... 0-66.5Fe2O3 %≤0.014Al2O3 %≤0.17MgO%≤0.03Insoluble material in water%≤0.1Modulus (SiO2/Na2O)1.9-2.1 ...