cupel

ریشه

From the French 'coupelle', diminutive of 'coupe' meaning cup.

مثال

• The gold was separated from the lead in a cupel.
• Cupellation is a process where ores or alloyed metals are treated under high temperatures and controlled operations to separate noble metals, like gold and silver, from base metals like lead, copper, zinc, arsenic, antimony or bismuth, present in the ore.
• The cupel absorbs the lead, leaving behind the precious metal.

ترکیب‌های رایج

Use a cupel Cupel in assaying Cupel absorbs lead