HuagongsheHuagongshe Chemistry Print Report · For research reference only
Maleic Anhydride → Maleic acid, disodium salt
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Maleic Anhydride | HCID 7923 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | Ammonium Persulfate | HCID 62648 | — |
| Reactant | Sodium | HCID 5360545 | — |
| Product | Maleic acid, disodium salt | HCID 6364608 | — |
Reaction Steps
An aqueous solution of sodium maleate was prepared by neutralizing maleic anhydride with an aqueous sodium hydroxide solution in a four-necked flask. The aqueous solution polymerization of this product was effected in the presence of ammonium persulfate at 100° C. for 5 h to obtain a dyeability-improving agent comprising sodium polymaleate having a molecular weight of 3,000.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04595394 |
| Source dataset | uspto-grants-1986_06 |
| ORD ID | ord-7d7efab82c684a9ab9fd302b0b666e6f |
| Source note | uspto-grants-1986_06 |