pyrogallaten.

Brit.

/ˌpʌɪrə(ʊ)ˈɡaleɪt/, U.S.

/ˌpaɪroʊˈɡæˌleɪt/

Origin: Formed within English, by compounding. Etymons: pyro- comb. form, gallate n.

Etymology: < pyro- comb. form + gallate n., after pyrogallic adj. Compare French pyrogallate (H. Braconnot 1831, in Ann. de chimie et de physique 46 210). Compare metagallate n.

Chemistry.

A salt of pyrogallol with a metal or other cation.

ΚΠ

1836 W. T. Brande Man. Chem. (ed. 4) 933 Ammonia, soda, and potassa, form soluble pyrogallates.

1878 W. de W. Abney Treat. Photogr. (1881) 98 The alkaline pyrogallates have..an affinity for the halogens.

1914 F. E. Fritsch & E. J. Salisbury Introd. Study Plants xiv. 186 A small tube containing pyrogallate of potash. The latter is obtained by dissolving pyrogallic acid in water and adding an excess of caustic potash.

1989 Inorg. Chem. 28 453/1 Nitrogen was purified by passing it in turn through vanadous sulfate and alkaline pyrogallate solutions.

This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).

单词	pyrogallate
释义	pyrogallaten. Brit. /ˌpʌɪrə(ʊ)ˈɡaleɪt/, U.S. /ˌpaɪroʊˈɡæˌleɪt/ Origin: Formed within English, by compounding. Etymons: pyro- comb. form, gallate n. Etymology: < pyro- comb. form + gallate n., after pyrogallic adj. Compare French pyrogallate (H. Braconnot 1831, in Ann. de chimie et de physique 46 210). Compare metagallate n. Chemistry. A salt of pyrogallol with a metal or other cation. ΚΠ 1836 W. T. Brande Man. Chem. (ed. 4) 933 Ammonia, soda, and potassa, form soluble pyrogallates. 1878 W. de W. Abney Treat. Photogr. (1881) 98 The alkaline pyrogallates have..an affinity for the halogens. 1914 F. E. Fritsch & E. J. Salisbury Introd. Study Plants xiv. 186 A small tube containing pyrogallate of potash. The latter is obtained by dissolving pyrogallic acid in water and adding an excess of caustic potash. 1989 Inorg. Chem. 28 453/1 Nitrogen was purified by passing it in turn through vanadous sulfate and alkaline pyrogallate solutions. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022). < n.1836
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