Chemical analysis Concentration Guaranteed CsI min 99.9 Li max 0.001 Na max 0.01 K max 0.01 Rb max 0.02 Al max 0.005 Ba max 0.005 Ca max 0.005 Mg max 0.001 Fe max 0.001 SO42- max 0.005 Application: This product is particularly suited for scintillation purposes and for the production of optical lenses and prisms. Handling：Handling in moist air should be avoided. Don’t spoil package. Storage: Stored in tightly closed containers and under exclusion of moisture. Packaging: double polyethylene bags with aluminium barrier in drums.