Акционерное общество "Государственный научно-исследовательский институт "Кристалл"
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Organic Low-Molecular-Weight Compounds And Preparation Thereof
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Abstract
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
SU976967/04A1966-09-011966-09-01Method of producing tetranitrosulphoxydiphenylamine
SU1841140A1
(en)