Character: White powder, insoluble in water, soluble in acids. It readily absorb moisture and carbon dioxide from atmosphere.

Application: Mainly used in manufacture of CTV fluorescent powders, and three-band fluorescent phosphors.

Used as the activating agent of X- ray intensifying screen.

Also used in nuclear industry.

Packing: In plastic woven bags with inner double PVC bags of 5kgs, 10kgs, 15kgs net each, or on request.