Correlation Between Rm and Standard Affinity of Some Anionic Azo Dyes on Cellulose

Results on affinity measurements and paper chromatography of some anionic azo dyes, obtained by diazotization of 4-aminobenzophenone, 2(4′-amino-benzoyl)thiophene, 4′-aminobenzanilide, 2-thiophene-carbo xanilide-4′-amino, trans-4-aminostilbene and trans-2-(4′-aminostyryl)thiophene and coupling with naphthionic acid, Nevile-Winther’s acid, R acid, H acid and chromotropic acid, have been reported. A linear relationship between the Rm value of the dyes and their standard affinity of dyeing has been observed for dyes with the same coupling component