Customization: | Available |
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CAS No.: | 7722-88-5 |
Formula: | Na4p2o7 |
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Introduction (Tetrasodium Pyrophosphate CAS No.:7722-88-5 )
Anhydrous sodium pyrophosphate is colorless transparent crystal or white powder. Relative density 1.824, melting point 880ºC, soluble in water. Anhydrous sodium pyrophosphate is mainly used as water softener, dyeing bleaching aid, wool degreaser, boiler descaling agent, metal ion chelating agent, dispersant agent, printing and dyeing and grass products fine bleaching aid. Synthetic detergent additives. Oil well mud regulator, production of ABS resin additives. Used as a complexing agent for copper in electroplating solution.
Item | Standard | |
Anhydrous(Na4P2O7) | Decahydrate(Na4P2O7·10H2O) | |
Main content ,≥% | 96.5~100.0 | 98.0 |
Water insoluble,≤% | 0.20 | 0.10 |
PH value(10g/L, aqueous solution ) | 9.9~10.7 | |
Orth phosphate | pass | |
Arsenic(As),≤% | 0.0003 | |
Heavy Metal(as Pb),≤% | 0.001 | |
Fluoride(as F),≤% | 0.005 | |
Loss on drying,% | ≤0.50 | 38.0~42.0 |
1. In Industry
Totally,mainly used as in industry as detergent auxiliary , paper production to bleach and electroplatingy.It is used for electroplating baths to form complexes together with Fe;For woolen industry as degreasing angent as well as bleaching agent;For Paper industry as decolorizer;For printing and dyeing industry as auxliary agent;For toothpast industry as additive to form colloid together with Dicalcium phosphate;For water treatment industry as water softner;For machanic industry as rust remover.
2.Food Applications
Tetra Sodium pyrophosphate is used in the food industry as an emulsifying agent, nutrient and texturing agent in applications including: processed cheese, seafood products, hamburgers and meat. In food industry it is used as buffering agent, emulsifier, nutrition ingredients and quality improver.