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pyrogallol


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1,2,3-trihydroxybenzene, C6H3(OH)3, a white crystalline solid, m.p. 132°C. Alkaline solutions turn dark brown on exposure to air through reaction with oxygen. It is a powerful reducing agent, employed in photographic developers. It is also used in volumetric gas analysis as an absorber of oxygen.

Pyrogallol

Subjects: Chemistry.


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