2 are all crystalline substances soluble in alcohol and ether, the meta compound being used for manufacturing the dyes known as “rhodamines” whilst the para compound is used in making phenacetin, etc. The ortho compound is yellow and melts at 450 C. the meta compound is also yellow and melts at 96 degrees C., whilst the para compound is colourless and melts at 1140 C.

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Definition of  NITROPHENOLS