Chemical formula: Na4P2O7
Molecular weight: 380.14
CAS Number: 7722-88-5
Standard executed: Tech grade (HG/T2968-1999)  Food grade (HG 2923-1999)
Properties:
White or colorless crystals, efflorescent in air, easily soluble in water but not in organic solution. Its water solution is alkaline. PH value of 1% solution is 12.1, relative density at 1.62g/cm3, melting point is 73.4 ℃.
Application:
Used as a water softening agent, cleaning agent in electroplating, color fixer in fabric dyeing and flux in enamel ware manufacturing and so on.
Packing and storage:
In 25kg, 50kg, 1000kg net bags, store at a cool, dry and well ventilated place.


Specifications        Food Grade   
Appearance        White Powder   
Main content % ≥     96.5
Phosphorus pentoxide, as P2O5 % ≥51.5
Ortho Phosphate        Pass    
PH of 1% water solution    9.9 — 10.7   
Water insoluble  % ≤     0.1
Fluoride, as F         50ppm
Heavy metals, as Pb     10ppm   
Arsenic, as As         3ppm   
Loss on ignition %≤    0.5
We can supply both industry grade and food grade TSPP