caveman - 5-11-2013 at 19:08
How do I obtain selenium from selenium sulfide?
elementcollector1 - 5-11-2013 at 19:44
Convert it to selenous acid, and bubble with sulfur dioxide?
eidolonicaurum - 3-1-2014 at 02:52
Oxidation in an aqueous medium to form selenous acid and sulphur dioxide, which then reacts to precipitate selenium.