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Arthur George Bloxam
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Organic Low-Molecular-Weight Compounds And Preparation Thereof
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Abstract
25,855. Bloxam, A. G., [Chemische Fabrik Griesheim Elektron]. Nov. 11. Samples furnished. Nitroaminoanthraquinones are obtained by treating anthraquinone nitramines, having a free o- or p-position. with mineral acids, except concentrated nitric acid; anthraquinone-anitramine gives a mixture of 1-amino-2-nitro- and 1 - amino - 4 - nitro - anthraquinone, while anthraquinone - # nitramine gives 1-nitro-2- aminoanthraquinone; anthraquinone-1: 5- and - 2: 6-dinitramine and substitution products of the nitramines are also specified as parent materials. Concentrated sulphuric or hydrochloric acid, and phosphoric acid, are specified as suitable acids. Specification 25,854/12 is referred to. Diaminoanthraquinones are obtained by reducing the above - described nitroaminoanthraquinones, say, with sodium sulphide.
GB191225855D1912-11-111912-11-11Manufacture of Nitroamino-derivatives of the Anthraquinone Series.
ExpiredGB191225855A
(en)
PROCEDURE FOR THE PRODUCTION OF 1,5-AND 1,8-DINITRO-ANTHRAQUINONES OF HIGH DEGREE OF PURITY BY NITRATION OF ANTHRAQUINONE IN SULFURIC ACID AND SUBSEQUENT SEPARATION OF THE REACTION MIXTURE