The synthetic dyestuffs and the intermediate products from which they are derived (1920)
Cain, John Cannell, 1871-1921, Thorpe, Jocelyn Field, 1872- · London : C. Griffin · leaf 171
become mark-edly purple when washed with water, owing to the formation of the red oxazoneon the fibre. The reason why Nile blue A exhibits this property to a greater degree thanany other member of the series is because of the presence of the free amino-group in position (6). When the hydrogen atoms… … (Nile blue A). (Red oxazone).
Dyes and dyeing
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