Molecular Formula: Na4P2O7
Molecular Weight: 265.9
Properties: White powder; soluble in water but insoluble in ethanol; relative density 2.45 and melting point 890℃; deliquescent in the open air. Its aqueous solution shows weak alkalinity and is stable at 70℃ but will be hydrolyzed into disodium phosphate when boiled
Uses: Applied in industries of detergents as detergent auxiliary, paper production to bleach and electroplating; In food industry it is used as buffering agent, emulsifier, nutrition ingredients and quality improver.
Packing: 25kg, 50kg net bags. It must be stored in places well ventilated and dry.
Standard executed: HG/T2968-1999
Item |
Industrial Grade |
Assay (Na4P2O7), %≥ |
98.0 |
Phosphorus pentoxide, % ≥ |
51.5 |
Ortho Phosphates |
Qualified |
pH (1% water solution) |
9.9—10.7 |
Water insoluble, % ≤ |
0.2 |
Fineness (through 60 mesh sieve), % |
90 |
|