Next is cupellation, which aims to separate and purify precious metals from the lead button. The lead button is placed in a porous bone-ash cupel and heated. At this time, lead is oxidized into lead ...

Established in 1938, Carbolite has over 60 years experience in the design & manufacture of electric laboratory & industrial furnaces, laboratory & industrial ovens & incubators. During this time, ...

Let us help you with your inquiries, brochures and pricing requirements Request A Quote Download PDF Copy Download Brochure One of the more reliable techniques for ...

(MENAFN- EIN Presswire) EINPresswire/ -- Mentioning precious metal detection, the fire assay process is absolutely recognized as the industry's "gold standard". Its history can be traced back ...