The synthetic dyestuffs : and the intermediate products from which they are derived (1905)
Cain, John Cannell, 1871-1921, Thorpe, Jocelyn Field, 1872-1940 · London : C. Griffen and Co. · leaf 32
S S S S Sulphonic acids derived from /^-naphthylamine by sulphonation {Heumann):— NH2 … The following is a short description of the more important naphthylaminesulphonic acids; for a more detailed and complete description a larger workmust be consulted (see Green, Organic Colouring Matters, 1904 ; Tauber andNorman, Derivate des Naphtalins, 1896, etc.):— Naphthionic acid NH2 IIIS03H…
Dyes and dyeing
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
