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Butyric acid was first observed in an impure form in 1814 by the French chemist Michel Eugène Chevreul.By 1818, he had purified it sufficiently to characterize it. However, Chevreul did not publish his early research on butyric acid; instead, he deposited his findings in manuscript form with the secretary of the Academy of Sciences in Paris,
Tukak Sadai is a district of South Bangka Regency, Bangka-Belitung Islands. The district is located in the southeastern section of Bangka Island , and contains the Sadai seaport. History