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James Yate Johnson
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Organic Low-Molecular-Weight Compounds And Preparation Thereof
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Abstract
10,323. Johnson, J. Y., [Badische Anilin & Soda Fabrik]. May 2. Azo compounds,. dyes, artificial.-Salts of 1 : 2-diazonaphthol sulpbonic acids, such as are described in Specifications No. 10,235, A.D 1904, and No. 23,034, A.D. 1905, are produced in a form suitable for being combined with dye components, by diazotizing the corresponding amine in presence of a salt of ammonium or of an alkali or alkaline earth. The production of 1 : 2-diazonaphthol-4- sulphonic acid is described.
GB190610323D1906-05-021906-05-02Improvements in the Manufacture of Salts of 1.2-Diazonaphthol Sulphoacids.
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