METHOD OF PRODUCING TETRANITROSULPHOXYDIPHENYLAMINE Russian patent published in 2016 - IPC C07C317/14 C07C209/10

Abstract SU 1841140 A1

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing tetranitrosulphoxy diphenylamine by nitration of phenothiazine with nitric acid, characterised by that, in order to increase purity of end product, process is carried out in two steps: at first step with 53-58 % acid, and at second step with 98 % acid.

EFFECT: obtaining tetranitrosulphoxy diphenylamine.

1 cl, 1 ex

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SU 1 841 140 A1

Authors

Abdrakhmanov Ildus Shafikovich

Tikhomirova Nina Pavlovna

Dubenkova Nina Alekseevna

Dates

2016-06-10—Published

1966-09-01—Filed