Pyrogallol for Promotion

Product name:Pyrogallol
CAS:87-66-1
Molecular Formula:C6H6O3
Formula Weight:126.11g/mol
Description of Pyrogallol:
Pyrogallol or benzene-1,2,3-triol is a benzenetriol. It is a white crystalline powder and a powerful reducing agent. It was first prepared by Scheele 1786 by heating gallic acid. An alternate preparation is heating para-chlorophenoldisulphonic acid with potassium hydroxide.
When in alkaline solution, it absorbs oxygen from the air, turning purple from a colourless solution. It can be used in this way to calculate the amount of oxygen in air, notably via the use of the Orsat apparatus.
Density:1.45 g/cm3
Melting point:131–134 °C
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