| gold refining for the amateur chemist - Nicholas W. Nickerson • libris.ro | 96.10 RON |
| Gold Refining for the Amateur Chemist, Paperback - Rev Nicholas W. Nickerson • elefant.ro | 97.99 RON |
nThis is a book designed for the home chemist. Are you tired of big refineries taking half of your metals? Then the processes described in this book are for you. You will learn detailed ways to recover and refine your own precious metals at home.
