Sodium Chloride → Tricalcium Phosphate

HRID 2398916Notes

Reaction equation

HRID 2398916 reaction equation
[Cl-].[Na+].C(=O)([O-])[O-].[Ca+2:7].[P:8]([O-:12])([O-:11])([O-:10])=[O:9].[Na+].[Na+].[Na+]>[Cl-].[Na+].O.S([O-])([O-])(=O)=O.[Ca+2].O.C(=O)([O-])[O-].[Na+].[Na+]>[P:8]([O-:12])([O-:11])([O-:10])=[O:9].[Ca+2:7].[P:8]([O-:12])([O-:11])([O-:10])=[O:9].[Ca+2:7].[Ca+2:7]

Participants

8

Reactant 3

HCID 5234Sodium ChlorideHCID 10112Calcium CarbonateHCID 24243Trisodium Phosphate

Product 1

HCID 24456Tricalcium Phosphate

Reagents, catalysts & solvents 4

HCID 962WaterSolvent2×HCID 10340Sodium CarbonateSolventHCID 24497Calcium SulfateSolventHCID 57417360Sodium chloride; waterSolvent2×

Procedure

U.S. Pat. No. 2,433,601 discloses the preparation of a brine low in calcium sulfate content from crude brine by dissolving the crude sodium chloride in water containing small amounts of sodium carbonate or trisodium phosphate. In this process, it is important that the pH of the water be at least about 7 so that an insoluble precipitate of calcium carbonate or calcium phosphate is formed which can be removed.

Sources & evidence

ORD record
ord-e3bd0a12c37445f3822f1fa992bc5880
Source dataset
uspto-grants-1977_05
Patent number
US04026676

Reaction notes

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