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Tetra Sodium Pyrophosphate(TSPP) TG
Chemical formula: Na4P2O7
Properties
White powder, easily soluble in water, density at 2.45, melting point at 890⊥, its water solution is alkaline, PH value in 1% solution is 9.9~10.7
Applications
Mainly used as detergent in washing, bleach in paper-making, and electroplating, etc. For food grade it is mainly used as food additive, buffering agent, emulsification agent, and nourishment, and modifying agent, etc.
Packing and Storage
In 25kg, or big bags and store at a cool, dry and well ventilated place.
SPECIFICATIONS
NO | Specifications | Industrial Grade | Food Grade |
1 | Assay (as Na4P2O7)%≥ | 96.5 | 96.5 |
2 | P2O5 %≥ | 51.5 | 51.5 |
3 | Ortho Phosphates | pass | pass |
4 | PH Value | 9.9—10.7 | 9.9—10.7 |
5 | Water Insoluble matter %≤ | 0.2 | 0.2 |
6 | Size (through 60mesh sieve) | 90 | 90 |
7 | Fluoride (as F)≤ |
| 0.005 |
8 | Heavy Metals (as Pb) %≤ |
| 0.001 |
9 | Arsenic (As)% ≤ |
| 0.0003 |
10 | L.O.I. % ≤ |
| 0.5 |