| 释义 |
quartation|kwɔːˈteɪʃən|
[f. L. quart-us fourth + -ation.]
The operation of combining silver with gold so that the latter metal forms one quarter of the whole; the gold is then separated from the silver, and at the same time freed from its impurities, by means of nitric acid.
1612Woodall Surg. Mate Wks. (1653) 273 Quartation is the separation of Gold and Silver mixt together, by four unequal parts. 1680Boyle Scept. Chem. ii. 144 That Operation that Refiners call Quartation, which they employ to purifie Gold. 1758Reid tr. Macquer's Chym. i. 149 The gold..is frequently alloyed with more or less silver, from which it is to be separated by quartation. 1868E. Seyd Bullion 219 Fine Gold may also be assayed without Quartation. |