????Product name: Sodium Polyphosphate

????Cas No: 10361-03-2

????Molecular formula: NaPO3

????Molecular weight: 101.96

????Optical specific grade

????Storage??Sealed dry preservation

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

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

????P2O5%??70%??1%

????Na2O%??30%??1%

????Fe??2PPM

????Cu??0.1PPM

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

????Application: Mainly used in special optical glass??used as additives in phosphate glass, fluoride phosphate glass, improving devitrification resistance of the glass and the light absorbing.

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