Sodium Hydroxide → Trisodium citrate

HRID 978328Notes

Reaction equation

HRID 978328 reaction equation
[OH-].[Na+:2].O.[C:4]([OH:16])(=[O:15])[CH2:5][C:6]([CH2:11][C:12]([OH:14])=[O:13])([C:8]([OH:10])=[O:9])[OH:7]>O>[C:4]([O-:16])(=[O:15])[CH2:5][C:6]([CH2:11][C:12]([O-:14])=[O:13])([C:8]([O-:10])=[O:9])[OH:7].[Na+:2].[Na+:2].[Na+:2]

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 222302-Hydroxy-1,2,3-propanetricarboxylic acid hydrate (1:1)

Product 1

HCID 6224Trisodium citrate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
90 °C

Procedure

An aqueous sodium citrate solution was prepared by adding 40.4 grams of sodium hydroxide pellets (99% pure) to 210 grams of citric acid monohydrate in 450 grams of distilled water. To this, 8.8 grams of acetaldehyde/diacetyl flavorant was added. The mixture was mixed in a high speed blender for less than 5 minutes, and was then transferred to a Niro dryer. The dryer maintained an inlet air temperature of 120° C., and an outlet air temperature of 90° C. The mixture did not dry, but remained coated on the walls of the dryer.

Workup

  1. additionTo this, 8.8 grams of acetaldehyde/diacetyl flavorant was added
  2. additionThe mixture was mixed in a high speed blender for less than 5 minutes
  3. customThe mixture did not dry

Sources & evidence

ORD record
ord-fca9cb24552e4c5ba2db0f8959f19a37
Source dataset
uspto-grants-1987_05
Patent number
US04664920

Reaction notes

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