Sodium Fluorosilicate

*Sodium fluorosilicate (based on dry):99.0%Min
*Iron(Fe):0.02%Max
*Free acid(based on HCI):0.1%Max
*Water-insoluble matter:0.40%Max
*Loss on Drying at 105℃:0.3%Max
*Fineness(through 250μm test bolter):90%Min
*Heave metal(based on Pb):0.02%Max