HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Hydroxide → Sodium 8-aminonaphthalene-1,6-disulphonate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | 1,6-Naphthalenedisulfonic acid, 8-amino- | HCID 67217 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Water | HCID 962 | — |
| Product | Sodium 8-aminonaphthalene-1,6-disulphonate | HCID 81424 | 87% |
Reaction Steps
To a solution of 25.0 g of 1-naphthylamine-3,8-disulfonic acid in 100 ml of water is added 20 ml of 5N sodium hydroxide with stirring. The mixture is warmed on a steambath and diluted with absolute ethyl alcohol to yield a crystalline precipitate. The solid is collected at room temperature and is washed with 75% aqueous ethyl alcohol, ethyl alcohol and ether. The product is dried in vacuo at 110° C. overnight to yield 22.8 g of (87%) 8-amino-1,6-naphthalenedisulfonic acid disodium salt.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04129590 |
| Source dataset | uspto-grants-1978_12 |
| ORD ID | ord-e0383623a6c148d193189a1873261ffc |
| Source note | uspto-grants-1978_12 |