Strontium Fluoride, granular or powder: Spec: SrF298%min, CaO0.5%max, S0.1%max, Cl0.04%max, P0.01%max, CO20.4%max, H2O0.5%max Packing: 25kg/bag, 1000kg/bag Property: Clear cube crystal, dissolvable in water, indissolvable in ethanol and aether. Usage: used in the manufacture of optical glass and single crystal laser, melting reagent, medicine and daily chemical industry.