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    俗稱皂黃,其外觀呈黃褐色粉末。酸性金黃G在溶于水和乙醇時水溶液呈橙黃色?梢院蜕匀苡谝颐押捅,微溶于丙酮。酸性金黃G在濃硫酸中呈紫色,稀釋后呈品紅色,而產生沉淀。用于肥皂的著色以及蠶絲、羊毛、紙張、皮革等的染色。與鋇鹽和鋁鹽作用而生成棕黃色的色淀,用于油墨和油漆工業等。酸性金黃G由間氨基苯磺酸經重氮化后與二苯胺在酸性介質中偶合而制得。


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