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. Griffin and company, limited · leaf 205
ination of two distilling flasks (tig. 6). The side-tube of the fiask forming the receiver is connected with the pump,and a thermometer is fitted into the neck of the other flask. Die Destination miter ver/niiidertem Druck im Laboratorium, Anschiitz. 188 SYNTH RTIC DYESTUFFS. To prevent bumping a… … Fi<!. 9. Another form of distilling flask is the Claisen flask (fig. 7). The thermometeris inserted in h, and a tube drawn out to a capillary point is fitted in a by means THK TECHNICAL LABORATORY. 189 of a cork. The open end of this tube outside the tiask is fitted with a short pieceof…
Dyes and dyeing
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