1, in 1, 5, 10kg bottle,easy to transport 2, adequate supply, have a cheapest price 3, Professional team, top-class service Specification: ItermSpecification(%)AssayCs2CO399.9Impurities max %Li0.002Na0.01K0.01Rb0.02Ca0.005Mg0.0005Fe0.001Al0.005SiO20.005SO42-0.02Cl0.01Pb0.001Ba0.005 Cesium Carbonate cs2co3