单词 | undissociated |
释义 | undiˈssociated, a. Chem. [un-1 8 a.] Of a molecule: whole, not split into oppositely charged ions.
1899Jrnl. Physical Chem. III. 284 The properties of this acid are therefore to be attributed almost solely to the undissociated molecule, CH3·COOH. 1930Field & Weill Electro-Plating i. 14 The undissociated copper sulphate..takes no direct part in the plating process. 1965Phillips & Williams Inorg. Chem. I. vii. 237 At pressures around 1 atmosphere I2 is largely undissociated at 1000 °K, but largely dissociated at 2000 °K. 1976Electrochimica Acta XXI. 280/1 The activity coefficient of the undissociated acid is taken as unity. |

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