Hydrogen Peroxide → Maleic acid, disodium salt

HRID 1982075Notes

Reaction equation

HRID 1982075 reaction equation
[C:1]1(=[O:7])[O:6][C:4](=[O:5])[CH:3]=[CH:2]1.[OH-].[Na+:9].C(O)(=[O:13])C=C.C(N)(=O)C=C.OO>>[C:1]([O-:6])(=[O:7])/[CH:2]=[CH:3]\[C:4]([O-:13])=[O:5].[Na+:9].[Na+:9]

Participants

6

Reactant 5

HCID 784Hydrogen PeroxideHCID 6579Acrylamide2×HCID 6581Acrylic AcidHCID 7923Maleic AnhydrideHCID 14798Sodium Hydroxide3×

Product 1

HCID 6364608Maleic acid, disodium salt

Procedure

An aqueous sodium maleate solution was prepared by neutralizing maleic anhydride with an aqueous sodium hydroxide solution in a four-necked flask. The aqueous solution polymerization of this solution, an aqueous acrylic acid solution and acrylamide was effected in the presence of hydrogen peroxide and sodium hydroxide at 100° C. for 6 h. After neutralization with an aqueous sodium hydroxide solution, a dyeability-improving agent comprising the salt of the copolymer and containing 3% of acrylamide as a third component was obtained.

Workup

  1. customThe aqueous solution polymerization of this solution
  2. customwas obtained

Sources & evidence

ORD record
ord-ca88a2dff8774885af3c457537abdc1e
Source dataset
uspto-grants-1986_06
Patent number
US04595394

Reaction notes

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