Calcium hydrogen phosphate → Calcium Sulfate

HRID 2083697Notes

Reaction equation

HRID 2083697 reaction equation
[P:1]([OH:5])([O-:4])([O-:3])=[O:2].[Ca+2:6].[S:7]([O-:11])([O-:10])(=[O:9])=[O:8].[K+:12].[K+]>>[OH:3][P:1]([O-:5])([OH:4])=[O:2].[K+:12].[S:7]([O-:11])([O-:10])(=[O:9])=[O:8].[Ca+2:6]

Participants

4

Reactant 2

HCID 24441Calcium hydrogen phosphateHCID 24507Potassium Sulfate

Product 2

HCID 24497Calcium SulfateHCID 516951Monobasic potassium phosphate

Procedure

The monocalcium phosphate solid was then reacted with a stoichiometric amount of potassium sulfate in aqueous solution to form KH2PO4 and calcium sulfate. The calcium sulfate precipitate is separated by filtration and recovered. The solution or filtrate from this filtration is subjected to evaporation for the precipitation of potassium dihydrogen phosphate which is then recovered by filtration.

Sources & evidence

ORD record
ord-b04b29a1b87c49aaaa5e7fd448436fb9
Source dataset
uspto-grants-1978_04
Patent number
US04086322

Reaction notes

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