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 Product name: Tetra Sodium Pyrophosphate(TSPP)

Byname: Tetra Sodium pyrophosphate
Molecular formula: Na4P2O7
Molecular Weight: 265.9
Standard executed: HG/T2968-1999(Technical Grade)
GB8848-88(Food Grade)
CAS Number: 7722-88-5
Properties:
White powder; Soluble in water but insoluble in ethanol; Relative density 2.45g/cm3and melting point 890ºC; Deliquescent in the open air. Its aqueous solution shows weak alkalinity and is stable at 70 ºC 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,50kg,1000kg net 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
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