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