ˌsulpho-indiˈgotic, a. Chem.
[ad. F. sulfo-indigotique (1832): see sulpho- and indigotic.]
= sulphindigotic. Hence ˌsulpho-ˈindigotate. So ˌsulphoinˈdylic sulpho-indigotic acid.
| 1838 T. Thomson Chem. Org. Bodies 198 To obtain the sulpho-indigotic acid we dissolve the sulpho-indigotate of ammonia in water, and precipitate by acetate of lead. 1855 Ogilvie Dict. Suppl., Sulphoindilic acid, a blue acid formed by the action of sulphuric acid upon indigo. 1881 Cleland Evol., etc. v. 132 Sulpho-indigotate of soda. |