Mono Potassium Phosphate

Potassium dihydrogen phosphate is a potassium salt in which dihydrogen phosphate(1-) is the counterion. It is a potassium salt and an inorganic phosphate. Monopotassium phosphate, MKP, (also potassium dihydrogenphosphate, KDP, or monobasic potassium phosphate), KH2PO4, is a soluble salt of potassium and the dihydrogen phosphate ion. It is a source of phosphorus and potassium as well as a buffering agent. It can be used in fertilizer mixtures to reduce escape of ammonia by keeping pH low.

Synonyms
Potassium dihydrogen phosphate, Potassium phosphate monobasic, Monobasic potassium phosphate, Potassium acid phosphate, Potassium dihydrogen orthophosphate, Monopotassium monophosphate, Monopotassium orthophosphate, potassium dihydrogenphosphate
Chemical Formula
KH2PO4
CAS Number
7778-77-0

Characteristics

Molar Weight
136.086 g/mol
Melting Point
253 °C
Density
2.34 g/cc
Forms
Crystals (large), Powder (dry), White, Granular, Red-brown, Pellets

Uses and Applications

Key applications

  • Baking
  • Nutritional supplements
  • Water treatment
  • Adhesives and Sealants
  • Agricultural
  • Cosmetic products
  • Anti-ageing products