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Tetrapotassium Pyrophosphate
Nanjing Liwei Chemical Co., Ltd.

Tetrapotassium pyrophosphate
Synonyms:Potassium Diphosphate,Diphosphoric acid, tetrapotassium salt,tetrapotassium diphosphate,diphosphoric acid, monopotassium salt
Formula: K4P2O7
MW: 330.35
white powder or mass,specific gravity:2.534,M.P.:1109°C;Soluble in water,insoluble in ethanol and its aqueous solution is alkali .Solubility (25°C):187g/110g water;it has the same properties as other condensed phosphate.


Tetrapotassium Pyrophosphate Industrial Grade

Content %≥


Iron(Fe) %≤


Water Insoluble %≤


PH of(1% water solution)


Arsenic(As) %≤


Heavy metals(Pb) %≤



accord with regulation


white powder or mass

Packing & Storage
Packing 25kg in plastic paper bag.
Transport By train,truck and vessel,etc.
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For samples, pricing, or more information, please call us at 0086-25-52397803 or mail to info@china-phosphate.com or fill out the following form. We will respond to you as soon as possible.
Frequently Asked Questions

Q: Tetrapotassium Pyrophosphate Application?
A: Tetrapotassium pyrophosphate can be found in herbicidal compositions as a spray adjuvant that adjuvant serves as both a plant nutrient and surface-active agent and functions synergistically with the herbicide to increase its level of absorption into plant tissues and to stimulate both the target and non-target plant species to growth responses for increased herbicide efficacy.
Tetrapotassium pyrophosphate TKPP is classifed as a buffering, chelating and oral care agent. Tetrapotassium pyrophosphate is the "tartar control" agent which removes calcium and magnesium from the saliva, so they can not deposit on the teeth.Potassium pyrophosphate is mainly used in toothpastes and mouthwash formulations. Tetrapotassium pyrophosphate is used as an anionic dispersant in water-based paints. It removes a small amount of Fe 3 + in order to improve the quality of dyeing.
TKPP is a soap and detergent builder. tetrapotassium pyrophosphate is a water softener and an emulsifier to suspend oils and prevent them from redepositing on clothing in the wash. As a water softener, TKPP combines with magnesium to sequester it from the detergent, without precipitating it onto the clothing. As a detergent additive, potassium pyrophosphate can also "reactivate" detergents or soaps that have combined with calcium to make an insoluble scum. Because of the eutrophication of water it is seldom used as a detergent additive.

Phosphates are basically compounds of phosphorus and oxygen that occur in many forms and are usually combined with other elements. We offer a wide range of phosphate compounds such as PHOSPHRIC ACID, POTASSIUM PYROPHOSPHAYE,SODIUM HEXAMETAPHOSPHATE.