Monopotassium phosphate

Synonym(s)

: Potassium phosphate monobasic, monobasic potassium phosphate

Mol. Formula

: KH2PO4

EC / List no.

: 231-913-4

CAS no.

: 7778-77-0

Molecular weight

: 136,086

Potassium dihydrogen phosphate is a potassium salt in which dihydrogen phosphate (1-) is the counter ion. It acts as fertilizer. It is potassium salt and inorganic phosphate.

Application

» It is used in fertilizers, pH regulators and water treatment products, washing and cleaning products, air care products, textile treatment products, dyes and laboratory chemicals.
» This substance is used in: agriculture, forestry and fisheries and scientific research and development.
» Used in the manufacture of textiles, leather or fur, chemicals and mineral products (eg plasters, cement).
» Used in machine washing liquids/detergents, automotive care products, paints and coatings or adhesives, fragrances, air fresheners, coolants in refrigerators, oil-based electric heaters.

Product Specifications

Physical and Chemical Properties
» It is in the form of colorless crystals or white granular powder.
» Odorless.

Properties

Characteristics	Unit	Value	Condition
Melting point	°C	253
Boiling point	°C	449.85
Density	g/cm3	2.33	20 °C
Solubility	g/ L	208	20 °C, soluble with water
Vapor pressure	Pa	0
pH		4.4- 4.7	1% solution
Refractive index		1.5093