diphenic, a. Chem.
(daɪˈfiːnɪk)
[f. di-2 + phenic.]
In diphenic acid (2C6H4.CO.OH) obtained by the oxidation of phenanthrene, one of the constituents of coal-tar. Its salts are diphenates.
| 1875 Watts Dict. Chem. VII. 434 Diphenic acid heated with excess of quick lime, is converted, not into diphenyl, but into diphenylene ketone. |