pyroxanthogenn.

Etymology: < German Pyroxanthogen (E. Schweizer 1848, in Jrnl. f. prakt. Chem. 44 135) < pyro- pyro- comb. form + ancient Greek ξανθός yellow (see xantho- comb. form) + German -o- -o- connective + German -gen -gen comb. form (compare -ogen comb. form), after Pyroxanthin pyroxanthin n. Compare xanthogen n.

Chemistry. Obsolete.

The component of wood tar from which pyroxanthin was derived.

ΚΠ

1848 Chem. Gaz. 6 361 Pyroxanthine..is first produced by the action of alkalies and alkaline earths upon the empyreumatic oil, or rather one of its constituents (pyroxanthogen).

1860 H. Watts tr. L. Gmelin Hand-bk. Chem. XIV. 165 A yellowish oil, which may be extracted from the solution by ether, resembles pyroxanthogen, but no longer yields pyroxanthin with potash.

This entry has not yet been fully updated (first published 1909; most recently modified version published online June 2018).

单词	pyroxanthogen
释义	pyroxanthogenn. Etymology: < German Pyroxanthogen (E. Schweizer 1848, in Jrnl. f. prakt. Chem. 44 135) < pyro- pyro- comb. form + ancient Greek ξανθός yellow (see xantho- comb. form) + German -o- -o- connective + German -gen -gen comb. form (compare -ogen comb. form), after Pyroxanthin pyroxanthin n. Compare xanthogen n. Chemistry. Obsolete. The component of wood tar from which pyroxanthin was derived. ΚΠ 1848 Chem. Gaz. 6 361 Pyroxanthine..is first produced by the action of alkalies and alkaline earths upon the empyreumatic oil, or rather one of its constituents (pyroxanthogen). 1860 H. Watts tr. L. Gmelin Hand-bk. Chem. XIV. 165 A yellowish oil, which may be extracted from the solution by ether, resembles pyroxanthogen, but no longer yields pyroxanthin with potash. This entry has not yet been fully updated (first published 1909; most recently modified version published online June 2018). < n.1848
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