Specification :

(1)Appearance: White powder or processed into spherical, cylindrical particles
(2) standard: BP98, GB1902-94,USP24
(3)specification:
main content: 99.0%min
Loss on drying: 1.5%max
Cl: 0.05%max
Heavy metals (Pb): 0.001%max
As: 0.0002%max,
SulfateSO4: 0.1%max
(4)package: 25kgsbag