cupel

English - Turkish

Definition of cupel in English Turkish dictionary: pota; küçük pota; potada arıtmak; ufak pota; {i} maden potası; potada tasfiye etmek; (isim) maden potası; kal potası

English - English

Definition of cupel in English English dictionary: A small circular receptacle used in assaying gold or silver with lead; {n} a vessel used in refining metals, to absorb the dross; {f} heat or refine in cupel; {i} small porous cuplike bowl made of bone ash used in separation of metals; To refine by means of a cupel; small porous bowl made of bone ash used in assaying to separate precious metals from e g lead; A shallow porous cup, used in refining precious metals, commonly made of bone ashes (phosphate of lime)
cupellation: The act or process of refining gold or silver, etc
cupellation: The assaying of precious metal in a cupel
cupellation: in a cupel
cupellation: Separation of gold or silver from impurities by melting the impure metal in a cupel (a flat, porous dish made of a refractory material) and directing a blast of hot air on it in a special furnace. The impurities, including lead, copper, tin, and other unwanted metals, are oxidized and partly vaporized and partly absorbed into the pores of the cupel