Georgievics, Georg von, b. 1859, Salter, Charles Thomas Colley · London, Scott, Greenwood & co. · leaf 308
-longed exposure to the action of nitrous acid, and cannot beshown by other means to contain an amido group. Now,this behaviour cannot be explained by either of the formulseNos. I. and II., both of which contain two free amido groups.Consequently, Safranine and, Aposafranine must be consti-tuted on… … OH u o DO Only a single hydroxyl group can be detected in Safranol,and none at all in Aposafranone ; and neither contains an 298 CHEMISTEY OF DYE-STUFFS. ammonium hydroxyl. Hence, if one desires to express their-constitution by the Safranine formulae Nos. I. and 11., it isnecessary to assume…
Dyes and dyeing
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