Wahl, André · London, G. Bell and sons, ltd. · leaf 177
FFS 158 composition of aniline oil for red is : aniline 33 per cent., ^-toluidine 23 per cent., o-toluidine 44 per cent. The theoretical proportions necessary are those of an equimolecular mixture, containing aniline 30 per cent., o-toluidine 35 per cent., ^9-toluidine 35 per cent., but an excess… … FIG. 5. inclined pipe for emptying. The vessel is closed by a cover carrying several openings (Fig. 5) for the axis of the stirrer, a tube for the thermometer, an inclined pipe leading to a condenser, and an opening for taking samples. The apparatus is heated by direct fire or in an oil bath first…
Dyes and dyeing -- Chemistry
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