EDTA disodium salt → 139-33-3

HRID 1277583Notes

Reaction equation

HRID 1277583 reaction equation
[CH2:1]([CH2:11][N:12]([CH2:17][C:18]([O-:20])=[O:19])[CH2:13][C:14]([OH:16])=[O:15])[N:2]([CH2:7][C:8]([OH:10])=[O:9])[CH2:3][C:4]([O-:6])=[O:5].[Na+:21].[Na+].C(=O)(O)[O-:24].[Na+]>O>[OH2:5].[OH2:24].[CH2:11]([CH2:1][N:2]([CH2:7][C:8]([O-:10])=[O:9])[CH2:3][C:4]([OH:6])=[O:5])[N:12]([CH2:17][C:18]([OH:20])=[O:19])[CH2:13][C:14]([O-:16])=[O:15].[Na+:21].[Na+:21]

Participants

4

Reactant 2

HCID 8759EDTA disodium saltHCID 516892Sodium Bicarbonate

Product 1

HCID 636371139-33-3

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

The disodium edetate was dissolved in the water. The cobaltous carbonate was added slowly with stirring. Gradual evolution of bubbles occurred after enough of the metal salt had been added to raise the pH to roughly 5. At that point, the insoluble material began to disappear more rapidly. After all of the bubbling had stopped, the liquid was stirred for approximately 15 minutes, and then the sodium bicarbonate was added slowly, with ample reaction time before further addition. The reaction was complete when a clear pink solution was obtained.

Workup

  1. additionhad been added
  2. temperatureto raise the pH to roughly 5
  3. stirringthe liquid was stirred for approximately 15 minutes
  4. customwas obtained

Sources & evidence

ORD record
ord-014b86c514754142a83cc7b425e408ae
Source dataset
uspto-grants-1981_07
Patent number
US04278610

Reaction notes

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