Oxalic Acid → Cobalt(II) oxalate dihydrate

HRID 1154506Notes

Reaction equation

HRID 1154506 reaction equation
CC1C=CC(C)=CC=1.O.O.O.O.C([O-])(=[O:15])C.[Co+2:17].C([O-])(=[O:20])C.[Br-].[K+].[C:24]([OH:29])(=[O:28])[C:25]([OH:27])=[O:26]>C(O)(=O)C>[OH2:15].[OH2:20].[C:24]([O-:29])(=[O:28])[C:25]([O-:27])=[O:26].[Co+2:17]

Participants

6

Reactant 4

HCID 971Oxalic AcidHCID 7809P-XyleneHCID 61372Cobalt(II) acetate tetrahydrateHCID 253877Potassium Bromide

Product 1

HCID 12096404Cobalt(II) oxalate dihydrateYield 100.7%

Reagents, catalysts & solvents 1

HCID 176Acetic AcidSolvent

Procedure

The experiment described in Example 8 was performed with the use of 200 g of p-xylene, 1000 g of acetic acid, 10 g of cobalt acetate tetrahydrate (corresponding to 2.37 g of cobalt) and 2.75 g of potassium bromide (corresponding to 1.86 g of bromine). After a reaction time of 252 minutes and an oxygen absorption of 147.2 liters, 294.5 g of terephthalic acid was obtained. After the addition of 4.7 g of oxalic acid, 7.4 g of cobalt oxalate dihydrate was isolated from the mother liquor.

Workup

  1. customAfter a reaction time of 252 minutes and an oxygen absorption of 147.2 liters, 294.5 g of terephthalic acid
  2. customwas obtained

Sources & evidence

ORD record
ord-08dd7ff5974344578eb5389c8efe3432
Source dataset
uspto-grants-1984_12
Patent number
US04490297

Reaction notes

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