Tetra Sodium Pyrophosphate ( TSPP),China price supplier

Tetra Sodium Pyrophosphate(TSPP)
Byname: Tetra sodium pyrophosphate
Molecular formula: Na4P2O7
Molecular Weight: 265.9
Standard executed: HG/T2968-1999(Technical Grade)
                                GB8848-88 or FCC (Food Grade)
CAS Number: 7722-88-5
Properties:
White powder; Soluble in water but insoluble in ethanol; Relative density 2.45g/cm3and melting point 890a??; Deliquescent in the open air. Its aqueous solution shows weak alkalinity and is stable at 70 a?? but will be hydrolyzed into di-sodium 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 and storage:
In 25kg net PP bage,store at a cool,dry and well ventilated place.
Guaranteed Technical 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