Hydrogen Peroxide → Maleic acid, disodium salt

HRID 1982072Notes

Reaction equation

HRID 1982072 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.S(OOS([O-])(=O)=O)([O-])(=O)=O.[NH4+].[NH4+].OO.[Na]>>[C:1]([O-:6])(=[O:7])/[CH:2]=[CH:3]\[C:4]([O-:13])=[O:5].[Na+:9].[Na+:9]

Participants

7

Reactant 6

HCID 784Hydrogen PeroxideHCID 6581Acrylic AcidHCID 7923Maleic AnhydrideHCID 14798Sodium Hydroxide2×HCID 62648Ammonium PersulfateHCID 5360545Sodium

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 the solution and an aqueous acrylic acid solution was effected in the presence of ammonium persulfate and hydrogen peroxide at 100° C. for 5 h. The resulting product was neutralized with an aqueous sodium hydroxide solution to obtain a dyeability-improving agent comprising sodium salt of the copolymer.

Workup

  1. customThe aqueous solution polymerization of the solution
  2. customto obtain a dyeability-improving agent

Sources & evidence

ORD record
ord-6d70e32806664f4888f0a3bbb88e6b82
Source dataset
uspto-grants-1986_06
Patent number
US04595394

Reaction notes

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