Ammonia → Tricalcium Phosphate

HRID 1788773Notes

Reaction equation

HRID 1788773 reaction equation
[N+]([O-])([O-])=O.[Ca+2:5].[N+]([O-])([O-])=O.[P:10]([O-:14])([O-:13])([OH:12])=[O:11].[NH4+].[NH4+].N>>[P:10]([O-:14])([O-:13])([O-:12])=[O:11].[Ca+2:5].[Ca+2:5].[Ca+2:5].[P:10]([O-:14])([O-:13])([O-:12])=[O:11]

Participants

4

Reactant 3

HCID 222AmmoniaHCID 24540Diammonium hydrogen phosphateHCID 24963Calcium nitrate

Product 1

HCID 24456Tricalcium Phosphate

Procedure

The reaction of 3 l of 0.5 mol/l aqueous solution of calcium nitrate [Ca(NO3)2 ] with 2 l of 0.5 mol/l aqueous solution of ammonium hydrogen phosphate [(NH4)2HPO4 ] was carried out by mixing them under nitrogen gas stream at a temperature equal to or less than 5° C., while adjusting pH to 11 by the addition of aqueous ammonia to the solution.

Workup

  1. additionby mixing them under nitrogen gas stream at a temperature equal to or less than 5° C.

Sources & evidence

ORD record
ord-9ae755645b74495cba90521e9eaebb2c
Source dataset
uspto-grants-1987_08
Patent number
US04684673

Reaction notes

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