1.High purity,99% min 2.Punctual deliverying 3.Competitive price and good quality ... salt,paint manufacturing and so on.Specification: ItemsHigh-purityContent(SrCO3),% ≥99.0Barium(Ba),% ≤0.03Calcium(Ca),% ≤0.03Iron(Fe),% ≤0.001Sulfate ... Production according to A grade standard of GB-10660-89. 99% min High Purity Strontium Carbonate In Powder