????Product name: Zinc metaphosphate

????Cas No: 13566-15-9

????Molecular formula: Zn(PO3)2

????Molecular weight: 223.35

????Optical specific grade

????Storage??Sealed dry preservation

????Appearance??Glass state powder, insoluble in water , acid and alkali.

????Purity??99%-99.9%

????P2O5(wt%)??62%??1%

????ZnO(Wt%)??35%??1%

????Free phosphoric acid(wt%)????0.02%

????Loss on ignition(wt%)??0.02-0.035%

????Fe??2PPM

????Cu??0.1PPM

????Ni??Co??Mn??Cr altogether??1PPM

????Application: Mainly used in special optical glass, special protective glass and radiation resistant optical glass materials, used as additives in phosphate glass, fluoride phosphate glass and laser fusion glass.

????Packaging??25KG/bag, or according to customer's requirement