Potassium phosphate

Description

White granular crystals. Potassium phosphate monobasic is used as a buffering agent.

Chemical structure

Synonyms and Related Terms

potassium phosphate monobasic; potassium dihydrogen phosphate

Risks

• Contact or inhalation may cause irritation.
• ThermoFisher: SDS

Physical and Chemical Properties

Soluble in water. pH = 4.4-4.7

Composition	KH2PO4
CAS	7778-77-0
Melting Point	253 C
Density	2.34 g/ml
Molecular Weight	mol. wt. = 136.09
Boiling Point	400 C (dec)

Resources and Citations

• The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 7542

• Richard C. Wolbers, Nanette T. Sterman, Chris Stavroudis, Notes for Workshop on New Methods in the Cleaning of Paintings, J.Paul Getty Trust, Los Angeles, 1990