????Product name: Maghesium metaphosphate

????Cas No: 13092-66-5

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

????Molecular weight: 182.25

????Optical specific grade

????Melting point??1160??C??

????Purity??99%

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

????P2O5????(wt%)??77%??1%

????MgO????(Wt%)??21%??1%

????Free phosphoric acid(wt%)??0.02-0.00%

????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 and 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