1, easy to transport 2, adequate supply, have a cheapest price 3, Professional team, top-class service Specification:ItermSpecification %AssayRb3PO4 min.99.9Impurities max.%Cl-0.005(SO4)2-0.0013CaO0.002MgO0.003K2O0.0025 Na2O0.003Fe2O30.0001Pb0.0001Al2O30.0015As0.000012Water insoluble 0.00015 Rubidium Phosphate