Potassium Phosphate, Dibasic
Title: Potassium Phosphate, Dibasic
CAS Registry Number: 7758-11-4
Additional Names: Dipotassium phosphate; dikalium phosphate; DKP; dipotassium hydrogen phosphate
Molecular Formula: HK2O4P
Molecular Weight: 174.18
Percent Composition: H 0.58%, K 44.89%, O 36.74%, P 17.78%
Line Formula: K2HPO4
Properties: White, somewhat hygroscopic granules. Very sol in water, slightly in alcohol. 100 g will dissolve rapidly and completely in 67 g of cold water. Converted into pyrophosphate by ignition. The aq soln is slightly alkaline to phenolphthalein. Keep well closed.
Use: Buffering agent in antifreeze solns; nutrient in the culturing of antibiotics; ingredient of instant fertilizers; as sequestrant in the prepn of non-dairy powdered coffee creams.
Therap-Cat: Cathartic.
Keywords: Laxative/Cathartic.

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