Trisodium citrate → Citric Acid

HRID 651920Notes

Reaction equation

[C:1]([O-:13])(=[O:12])[CH2:2][C:3]([CH2:8][C:9]([O-:11])=[O:10])([C:5]([O-:7])=[O:6])[OH:4].[Na+:14].[Na+].[Na+].[OH-:17].[Na+]>>[C:1]([OH:13])(=[O:12])[CH2:2][C:3]([CH2:8][C:9]([OH:11])=[O:10])([C:5]([OH:7])=[O:6])[OH:4].[OH-:17].[Na+:14]

Participants

Reactant 2

HCID 6224Trisodium citrate

HCID 14798Sodium Hydroxide2×

Product 2

HCID 311Citric Acid

HCID 14798Sodium Hydroxide

Procedure

Electrodialysis was carried out similarly to Example 2, using 1000 parts of a one-molar aqueous trisodium citrate solution in compartment (9) and 1000 parts of 0.1 molar sodium hydroxide solution in compartment (8). 940 parts of an aqeuous solution of citric acid (1.0 mole/kg, corresponding to a material yield of 94% and a current efficiency of 92%) were obtained in compartment (9), and 1264 parts of sodium hydroxide solution (1.72 moles of NaOH per kg, corresponding to a material yield of 69%) were obtained in compartment (8).

Sources & evidence

ORD record: ord-8c649babe84d4e5097325a66a5e8c57b
Source dataset: uspto-grants-1987_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04670125

Reaction notes

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