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Updated: May 15, 2025
I pointed to benzene or benzol in the table as a hydrocarbon, C H , which forms a principal colour-producing constituent of coal-tar. If you desire to produce chemical appetite in benzene, you must rob it of some of its hydrogen. This is the first step in the formation of aniline.
4 This direction can be established with sufficient exactitude by holding a very thin object right in front of the prism and marking with a stretched thread the direction which leads from the object to its shadow on the screen. The colour-producing edge must then be introduced from either side so that it just touches the thread.
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