Strontium Sulfate, Reagent, 98.16%, 100g For Research & Development Not for drug, human, animal, or food use Certificate of Analysis: Purity by complexometric 98.16% Appearance (Color) White Appearance (Form) Powder Identity by X-Ray Diffraction Loss on Ignition 1.34% Alkalies (as SO4) 0.80% Chloride (Cl) 0.002% Iron (Fe) 0.001% CAS: 7759-02-6 FORMULA: SrSO4