HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → 4-Amino-2-chlorobenzenesulfonic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 1-Chloro-3-nitrobenzene | HCID 8489 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | Sodium Sulfite | HCID 24437 | — |
| Solvent | Water | HCID 962 | — |
| Product | 4-Amino-2-chlorobenzenesulfonic acid | HCID 15850359 | — |
Reaction Steps
A mixture of 31.5 grams of 3-chloronitrobenzene, 450 milliliters of 5N-sodium sulphite solution and 500 milliliters of 2N sodium hydroxide solution was refluxed with stirring for 90 minutes, acidified with concentrated hydrochloric acid, and refluxed for 1 hour. On cooling and diluting with water a solid crystallised out which was filtered and washed with water to give 9.9 grams of 2-chlorosulphanilic acid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03933829 |
| Source dataset | uspto-grants-1976_01 |
| ORD ID | ord-3ea4c2676db44e6caef9821dde52820b |
| Source note | uspto-grants-1976_01 |