Sodium silicofluoride Loss of weight on drying at 105¦ 0.30%max 0.28% Free acid(as hcl) 0.10%max 0.088% Chlorides(as cl-) 0.10%max 0.086% Sulphate(so42-) 0.30%max 0.25% Iron(fe) 0.02%max 0.0015% Water-insoluble matter 0.5% max 0.36% In plastic bag then to woven bag of 25kgs each net or 1000kgs supersack
