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Trimethylamines form an azeotrope in the above reaction.

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Trimethylamines form an azeotrope in the above reaction.

(a) True

(b) False

I have been asked this question in an internship interview.

The question is from Technical Manufacturing of Amino Compound topic in portion Amination by Ammonolysis of Unit Processes

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Right option is (a) True

For explanation I would say: Trimethylamine forms a binary azeotrope not only with NH3, but with mono- and dimethylamines as well, and that mono- and dimethylamine mixtures, boiling about 14°C apart, can be conveniently separated by fractional distillation.

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