Process for the purification of nitrobenzaldenhyde

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

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C07C 7936

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049103458

ABSTRACT:
Crude nitrobenzaldehyde can be substantially purified from the undesired positional isomers if a treatment with 100-10,000% by weight of water and 1-30% by weight of an emulsifier, all with reference to the dry weight of the crude nitrobenzaldehyde, is undertaken at a temperature of 30.degree.-140.degree. C. and at a pH of 3-14.

REFERENCES:
Sugihara et al., J. Org. Chem. "Recrystallization of Organic Compounds from Detergent-Water Systems" pp. 1445-1447, 1956.
Hawley, Gessner, "The Condensed Chemical Dictionary" 1983 10th ed. pp. 314-315, 408-409, 929-930 and 986, Chem. Abs., vol. 101, 132169a, 1984, Mou, Yujain.

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