????Product name: Barium metaphosphate

????Cas No: 13762-83-9

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

????Molecular weight: 295.28

????Optical specific grade

????PH??2.4

????Melting point??1560??C

????Refractive index??1.589 - 1.782

????Storage??Sealed dry preservation

????Appearance??Glass state powder, insoluble in water.

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

????P2O5(wt%)??48%??1%

????BaO(Wt%)??52%??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

????Appearance??Glass state powder, insoluble in water.

????Application: Mainly used in special optical glass materials. Additive for phosphate and fluorophosphate glass glass, improve the anti permeability and absorption loss.

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