Tetrapotassium Pyrophosphate

Synonym(s)

: Diphosphoric acid; tetrapotassium salt, potassium diphosphate, TKPP

Mol. Formula

: K4P2O7

EC / List no.

: 230-785-7

CAS no.

: 7320-34-5

Molecular weight

: 330,34

Potassium tetrapyrophosphate is a whitish colored powdery solid. Toxic if swallowed and/or inhaled. Contact with the substance should be avoided.

Application

» This substance is used in the following products: fillers, putties, plasters, modeling clay, adhesives and sealants, coating products, fertilizers, inks and toners, pharmaceuticals, polymers, washing and cleaning products, and cosmetics and personal care products.
» Other releases of this substance into the environment are likely to result from: indoor use (eg machine wash liquids/detergents, automotive care products, paints and coatings or adhesives, fragrances and air fresheners) and outdoor use.

Product Specifications

Physical and Chemical Properties
» Tetrapotassium tetrapyrophosphate is a whitish powdery solid
» Odorless.

Properties

Characteristics	Unit	Value	Condition
Melting point	°C	600
Density	g/ cm³	2.61	20 °C
Solubility	g/ L	10	20 °C, soluble with water
Vapor pressure	Pa	0	20 °C
pH		10- 10.8	1% solution