Product name: Tetra Sodium pyrophosphate

Molecular formula: Na4P2O7

Molecular Weight: 265.9

CAS Number: 7722-88-5

Properties:

White powder; Soluble in water but insoluble in ethanol; Relative density 2.45g/cm3and melting point 890℃; Deliquescent in the open air. Its aqueous solution shows weak alkalinity and is stable at 70 ℃ but will be hydrolyzed into di-sodium phosphate when boiled .

Specifications:

NO   Specifications  Industrial Grade        Food Grade

 1     Appearance    white powder or granular           

 2     Assay (as Na4P2O7 )%≥         96.5 96.5

 3     P2O5 %≥         51.5 51.5

  4 Ortho Phosphates     pass pass

  5 PH Value 9.9-10.7    9.9-10.7

  6 Water Insoluble matter % ≤    0.1    0.1

  7 Size (through 60mesh sieve)    90.0 90

  8 Fluoride (as F) ≤     0.005       

  9 Heavy Metals (as Pb) % ≤       0.001       

  10         Arsenic (As)% ≤             0.0003

 11   L.O.I% ≤ 0.5   

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 and storage:

In 25kg,50kg,1000kg net bage,20mt/FCL.Store at a cool,dry and well ventilated place.