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Sodium Pyrophosphate, Anhydrous
Assay 96-97%, P2O5 52-54%
7722-88-5
Sequestrant for Cu in electroplating liquid
De-rusting agent in machinery manufacture
Preparation of auxiliary to bleaching wool together with bleaching powder or as wool de-gumming agent
Aid for plant fiber bleaching and print dyeing
Detergent constituient
Dispersing agent and emulsifier in chemical production
Water softener for treatment of water
Scale removal agent for boiler
Raw material for production of other pyrophosphate. In food industry it is used as buffering agent, emulsifier, nutrient and texturizer.
Sodium pyrophosphate Anhydous occurs as as a white crystalline powder. It is freely soluble in water but insoluble in ethanol. It has got a relative density as 2.45g/cm3and melts at 890¡É. It is apt to take up moisture form the air to deliquesce. Its aqueous solution shows weak alkalinity and is stable below 70 ¡É but will be hydrolyzed into di-sodium phosphate when boiled.
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