| 释义 |
basicity Chem.|beɪˈsɪsɪtɪ|
[f. basic a. + -ity.]
1. The power of combining with bases possessed by an acid, dependent on the number of atoms of hydrogen replaceable by a metal which are contained in it; thus nitric acid (HNO3) is monobasic, phosphoric acid (H3PO4) is tribasic.
1849Liebig & Kopp's Rep. Progr. Chem. I. 469 The capacity of saturation or the basicity B of a compound. 1883Muir Heroes of Sc. V. 23 Graham..added to science the conception of acids of different basicity.
2. (See quot.)
1888J. G. Horner Lockwood's Dict. Terms Mech. Engin., Basicity. Refers to the proportion of metallic oxide present in, and the absence of silicon from a furnace lining, a cinder, flux, or slag. The fettling of a puddling furnace depends for its efficacy on its basic character. |