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单词 rhodizonic
释义 rhodizonic, a. Chem.|rəʊdɪˈzɒnɪk|
[f. Gr. ῥοδίζειν to be red, f. ῥόδον rose, after G. rhodizonsäure (Heller, 1837).]
The name of two acids (so named because their salts are red) obtained from carboxide of potassium. Hence rhodiˈzonate, a salt of rhodizonic acid.
1839R. D. Thomson in Brit. Ann. 346 Rhodizoic [sic] acid may be isolated from the potash salt.Ibid., Rhodizoate of potash.1842Graham Elem. Chem. 934 Rhodizonic Acid..was first observed by L. Gmelin, and recognised as a new acid by Heller.Ibid., A red solution..containing rhodizonate of potash.1860Brodie in Q. Jrnl. Chem. Soc. XII. 272 The rhodizonate appears as a red insoluble powder.1868Watts Dict. Chem. s.v., It will be convenient to designate the acid originally obtained by Heller..as α-rhodizonic, and that obtained by Brodie as β-rhodizonic acid.
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