| 释义 |
pa·tera process
\pəˈtārə-\ noun
Usage: usually capitalized 1st P
Etymology: after Adolf von Patera, 19th century German metallurgist
: extraction of silver from its ores by roasting with salt, leaching out the silver chloride with a solution of sodium thiosulfate, and precipitating the silver as sulfide by means of sodium sulfide |