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| Tetrasodium Pyrophosphate (TSPP,FOOD) |
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Byname: Tetrasodium pyrophosphate
Molecular formula: Na4P2O7
Molecular Weight: 265.9
CAS NO: 7722-88-5
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 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 double layer bags of 25Kg net. It must be stored in places well ventilated and dry.
Guaranteed Technical Specifications:
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Specifications |
Industrial Grade |
Food Grade |
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Assay (as Na4P2O7 )%≥ |
96.5 |
96.5 |
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P2O5 %≥ |
51.5 |
51.5 |
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Ortho Phosphates |
pass |
pass |
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PH Value |
9.9-10.7 |
9.9-10.7 |
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Water Insoluble matter % ≤ |
0.2 |
0.2 |
| Size (through 60mesh sieve) |
90 |
90 |
| Fluoride (as F) ≤ |
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0.005 |
| Heavy Metals (as Pb) % ≤ |
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0.001 |
| Arsenic (As)% ≤ |
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0.0003 |
| L.O.I. % ≤ |
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0.5 |
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