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Cupellation   Listen
noun
Cupellation  n.  The act or process of refining gold or silver, etc., in a cupel. Note: The process consist in exposing the cupel containing the metal to be assayed or refined to a hot blast, by which the lead, copper, tin, etc., are oxidized, dissolved, and carried down into the porous cupel, leaving the unoxidizable precious metal. If lead is not already present in the alloy it must be added before cupellation.






Collaborative International Dictionary of English 0.48








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"Cupellation" Quotes from Famous Books



... vaporization, volatilization; gasification, evaporation, vaporation^; distillation, cupellation [Chem], cohobation, sublimination^, exhalation; volatility. vaporizer, still, retort; fumigation, steaming; bay salt, chloride of sodium^. mister, spray. bubble, effervescence.' V. render gaseous &c 334; vaporize, volatilize; ...
— Roget's Thesaurus of English Words and Phrases: Body • Roget

... attributed to Geber which have been examined are in Latin, but the library of Leyden is said to possess some works by him written in Arabic. These MSS. contain directions for preparing many metals, salts, acids, oils, etc., and for performing such operations as distillation, cupellation, dissolution, ...
— The Story of Alchemy and the Beginnings of Chemistry • M. M. Pattison Muir

... plate about two or three inches long, and one quarter of an inch at one end, and half an inch at the other. These edges are made sharp with a file. The widest end of this charcoal borer is used for the purpose of making cavities for cupellation. ...
— A System of Instruction in the Practical Use of the Blowpipe • Anonymous

... the reiteration of "Here's another for you! and here's another!" This lavishness served to stimulate cupidity, and every day the Bedawin brought in specimens from half a dozen different places. But the satisfaction was at its height when the crucible produced, after cupellation, a button of "silver" weighing some twenty grammes from the hundred grammes of what the grumbling Californian miners had called, in their wrath, "dashed black dust;"[EN109] and when a second experiment yielded twenty-eight grammes (each fifteen grains and a half) and ten centigrammes ...
— The Land of Midian, Vol. 1 • Richard Burton

... gold). Associated words: alchemist, alchemy, auriferous, alloy, assay, assayer, assaying, filigree, aurated, auric, aureate, aurific, aurigraphy, aurivorous, aurocephalous, platinum, aurous, billet, carat, chlorination, chrysography, cupel, foil, cupellation, gild, orphrey, vermeil, gilded, gilding, gilt, orris, amalgamated, goldsmith, bonanza, schlich, inaurate, inauration, ingot, lingot, lode, nugget, ore, ormolu, ...
— Putnam's Word Book • Louis A. Flemming



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