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In 1847, the German chemist Hermann Kolbe achieved the first synthetic production of Glacial Acetic Acid Gaa from inorganic materials. The process involved chlorinating carbon disulfide to form carbon tetrachloride, followed by pyrolysis, hydrolysis, and chlorination to produce trichloroacetic acid, which was then electrolytically reduced to acetic acid.
By 1910, most Glacial Acetic Acid Gaa was obtained from the dry distillation of wood tar. The process involved treating the tar with calcium hydroxide to form calcium acetate, which was then acidified with sulfuric acid to yield acetic acid. At that time, Germany produced around 10,000 tons of glacial acetic acid annually, with about 30% being used in the manufacture of indigo dye.