pyrogallol in hair dyeing, dyeing of suturing materials and for oxygen absorption in gas analysis.
pyrogallol is an organic compound with the formula c6h3(oh)3. it is a white, water-soluble solid although samples are typically brownish because of its sensitivity toward oxygen. it is one of three isomeric benzenetriols.
one can find its uses in hair dyeing, dyeing of suturing materials and for oxygen absorption in gas analysis. it also has antiseptic properties. pyrogallol was also used as a developing agent in black-and-white developers, but its use is largely historical except for special purpose applications. hydroquinone is more commonly used today. it is also used in isolation of inert gases from a mixture of gases, which requires absorption of oxygen from the mixture.
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