cupellingn.
/ˈkjuːpəlɪŋ/ = cupellation n.
ΘΚΠ
society > occupation and work > industry > working with specific materials > working with metal > [noun] > refining > methods of
calcinationc1386
calciningc1386
liquation1471
fulmination1617
cupelling1644
decrepitating1662
decrepitation1669
fulguration1676
concentration1689
cupellationa1691
scorification1755
affination1851
thermite process1905
zone melting1952
zone refining1952
zone levelling1953
1644 K. Digby Two Treat. ii. x. 432 In the coppelling of a fixed metall.
a1691 R. Boyle Wks. (1772) III. 453 (R.) The quick melting down of ores, and cupelling of them.
Compounds
attributive and in other combinations, as cupelling-fire, cupelling-furnace.
ΚΠ
a1691 R. Boyle Wks. (1772) III. 713 (R.) We kept it there in a cupelling-fire about three hours (having occasion to continue the cupellation so long for other trials).
1822 T. Webster Imison's Elem. Sci. & Art (new ed.) II. 113 The mixed metal is put into a dish called a cupel..and placed in a cupelling furnace.
This entry has not yet been fully updated (first published 1893; most recently modified version published online September 2018).
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n.1644