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 208
pressure. The complete apparatus for distillingin vacuum is shown in fig. 10. The distilling apparatus is best put together with rubber corks. Ordinarycorks, however, may be made quite tight by coating them when in position withcollodion. The flask, which should not be of more than 250 c.c.… … Fig. 11. Distillation With Steam.—In many cases where a direct distillationcannot be carried out, and particularly for the separation of organic frominorganic substances, distillation in a current of steam is resorted to (seePreparation of Aniline). The apparatus used is shown in fig. 11. A large…
Dyes and dyeing
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