HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ammonia → Cleve's acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ammonia | HCID 222 | — |
| Reactant | 4-Chloronaphthalene-1,6-disulfonic acid | HCID 15191954 | — |
| Solvent | Water | HCID 962 | — |
| Product | Cleve's acid | HCID 8386 | — |
| Product | 1-Naphthylamine-4,7-disulfonic acid | HCID 66567 | — |
Reaction Steps
Process of claim 1 wherein 1-aminonaphthalene-4,7-disulphonic acid is prepared from 1-chloronaphthalene-4,7-disulphonic acid at temperatures below 220° C, and then the temperature of the reaction mixture is raised to 220° to 350° C in the presence of ammonia and water so as to obtain 1-aminonaphthalene-7-sulphonic acid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04091013 |
| Source dataset | uspto-grants-1978_05 |
| ORD ID | ord-1b0a964716db4c25ab1aa8cf432215f9 |
| Source note | uspto-grants-1978_05 |