... 7647-17-8 Applications:Biotechnology,Catalysis,Organic Synthesis Cesium ChloridePurity: 99.9%Cas No.: 7647-17-8Formula ... 5ppmFe: 5ppmAl: 20ppmSiO2: 50ppmRb: 500ppmPb: 5ppmSO4: 50ppm -- Cesium Applications : Biotechnology DNA is a molecule which contains the genetic ... of every organism. High purity cesium salts, e.g. cesium chloride, cesium sulfate, cesium trifluoroacetate and rubidium chloride are used ...