... 0.014Al2O3 %≤0.17MgO%≤0.03Insoluble material in water%≤0.1Modulus (SiO2/Na2O)3.1-3.5USAGE ... well as it is a product to intenerate water and help subsiding. In weave industry, the ... produt is applied widely to found, make grinding wheel and metal antiseptic,etc..In construction industry, the ... agent, fire-resistent material,etc.. In agriculture field, the product is applied to manufacture silicon-element ...