Sulphindigotic

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Sulphindigotic \Sulph*in`di*got"ic\, a. (Chem.)
     Of, pertaining to, or designating, a sulphonic acid obtained,
     as a blue solution, by dissolving indigo in sulphuric acid;
     -- formerly called also {cerulic sulphuric} acid, but
     properly called {indigo-disulphonic acid}.
     [1913 Webster]