diphenicadj.
/dʌɪˈfiːnɪk/ Chemistry.
In diphenic acid (2C6H4.CO.OH) obtained by the oxidation of phenanthrene, one of the constituents of coal-tar. Its salts are diphenates n.
ΚΠ
1875 H. Watts Dict. Chem.: 2nd Suppl. 434 Diphenic acid heated with excess of quick lime, is converted, not into diphenyl, but into diphenylene ketone.
This entry has not yet been fully updated (first published 1896; most recently modified version published online December 2019).
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adj.1875- challenge essoin
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