Citric Acid → Trisodium citrate

HRID 1109936Notes

Reaction equation

HRID 1109936 reaction equation
[OH-].[Na+:2].[C:3]([OH:15])(=[O:14])[CH2:4][C:5]([CH2:10][C:11]([OH:13])=[O:12])([C:7]([OH:9])=[O:8])[OH:6].COCCOCCOC>O>[C:3]([O-:15])(=[O:14])[CH2:4][C:5]([CH2:10][C:11]([O-:13])=[O:12])([C:7]([O-:9])=[O:8])[OH:6].[Na+:2].[Na+:2].[Na+:2]

Participants

5

Reactant 3

HCID 311Citric Acid2×HCID 8150DiglymeHCID 14798Sodium Hydroxide3×

Product 1

HCID 6224Trisodium citrate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent2×

Procedure

An aqueous solution of sodium citrate was prepared by adding 38.8 gms. of sodium hydroxide to 620 gms. of water with stirring. When the sodium hydroxide dissolved, 880 gms. of anhydrous citric acid were added as stirring was continued. When the citric acid dissolved, 60 gms. of POLY-TERGENT SL-62 surfactant, 90 gms. of POLY-TERGENT SL-42 surfactant and 80 gms. of POLY-SOLV DPM glycol ether were added. An additional amount of 300 gms. of water containing 38.8 gm. sodium hydroxide was added. Stirring was continued until the mixture is homogeneous. The resulting formulation had a pH greater than 2.

Workup

  1. additionby adding 38.8 gms
  2. stirringStirring

Sources & evidence

ORD record
ord-ddab5e9ce4ba48f7a776d7437641f9fa
Source dataset
uspto-grants-1994_06
Patent number
US05324443

Reaction notes

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