Acrylic Acid → Maleic acid, disodium salt

HRID 1982071Notes

Reaction equation

HRID 1982071 reaction equation
[C:1]([O-:5])(=[O:4])[CH:2]=[CH2:3].[Na+:6].[C:7]([OH:11])(=[O:10])C=C.C1(=O)OC(=O)C=C1.[OH-].[Na+].S(OOS([O-])(=O)=O)([O-])(=O)=O.[NH4+].[NH4+].[Na]>>[C:7]([O-:11])(=[O:10])/[CH:3]=[CH:2]\[C:1]([O-:5])=[O:4].[Na+:6].[Na+:6]

Participants

7

Reactant 6

HCID 6581Acrylic AcidHCID 7923Maleic AnhydrideHCID 14798Sodium HydroxideHCID 62648Ammonium PersulfateHCID 4068533Sodium acrylateHCID 5360545Sodium

Product 1

HCID 6364608Maleic acid, disodium salt

Procedure

An aqueous sodium acrylate solution and an aqueous sodium maleate solution were prepared by neutralizing acrylic acid and maleic anhydride, respectively, with an aqueous sodium hydroxide solution. The aqueous solution polymerization of the two solutions was effected in the presence of ammonium persulfate at 100° C. for 5 h to obtain a dyeability-improving agent comprising sodium salt of the copolymer.

Workup

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

Sources & evidence

ORD record
ord-e1bf5a1d777240f78e1a73f092a4189d
Source dataset
uspto-grants-1986_06
Patent number
US04595394

Reaction notes

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