Sulfuric Acid → Sodium Phosphate, Dibasic

HRID 247360Notes

Reaction equation

HRID 247360 reaction equation
[P:1]([O-:5])([O-:4])([O-:3])=[O:2].[Na+:6].[Na+].[Na+].[S:9](=[O:13])(=[O:12])([OH:11])[OH:10]>>[P:1]([OH:5])([O-:4])([O-:3])=[O:2].[Na+:6].[Na+:6].[S:9]([O-:13])([O-:12])(=[O:11])=[O:10].[Na+:6].[Na+:6]

Participants

4

Reactant 2

HCID 1118Sulfuric AcidHCID 24243Trisodium Phosphate

Product 2

HCID 24203Sodium Phosphate, DibasicHCID 24436Sodium Sulfate

Procedure

In a third form of the invention trisodium orthophosphate is acidified with sufficient sulphuric acid in solution to form disodium orthophosphate and sodium sulphate. The two compounds were separated by crystallization and the disodium orthophosphate heat treated to give tetrasodium pyrophosphate.

Sources & evidence

ORD record
ord-877ad0cc30cd4799875595239ad902e4
Source dataset
uspto-grants-1987_11
Patent number
US04707344

Reaction notes

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