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pyrogallate

[ pahy-ruh-gal-eyt, -gaw-leyt ]

noun

, Chemistry.
  1. a salt or ether of pyrogallol.


pyrogallate

/ ˌpaɪrəʊˈɡæleɪt /

noun

  1. any salt or ester of pyrogallol
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of pyrogallate1

First recorded in 1830–40; pyrogall(ol) + -ate 2
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Example Sentences

Having examined the gases of fumaroles by means of a graduated tube, and the pyrogallate of potash, I always found that it contained less oxygen than the surrounding atmosphere.

To make a quantitative analysis of the carbon contained in gas, the pyrogallate of potash must be entirely removed from the burette.

It also combines with the metal, forming a pyrogallate—a dark brown, very non-actinic material.

The chemical action here is somewhat obscure, but those parts of the plates which were affected by the light are made visible, a part of the AgzBr being reduced to Ag by the affinity which sodium pyrogallate has for Br.

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