Aniline Water
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
Aniline water is a solution of aniline in distilled water or prepared with alcohol, historically used in microscopy to dissolve organic dyes like fuchsin or gentian violet. These aniline-water solutions provided a significantly stronger staining capacity than simple aqueous or alcoholic solutions of the same dyes.
Encyclopedia entry (1928–1936)
ANILINE WATER, a solution of aniline in water, is prepared 1) by shaking aniline in distilled water, after which the solution is filtered; 2) by dissolving 3 cubic centimeters of aniline in 10 cubic centimeters of absolute alcohol, followed by dilution with 100 cubic centimeters of distilled water. It is used for dissolving organic dyes, such as fuchsin or gentian violet, which dissolve in aniline water much more strongly than in water or in 10% alcohol. The resulting solutions possess a stronger staining capacity than aqueous or alcoholic solutions of the same dyes.
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“Aniline Water.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/aniline-water/