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calcination|kælsɪˈneɪʃən|
[n. of action f. med.L. calcināre: see calcine and -ation.]
1. The action or process of calcining; reduction by fire to a ‘calx’, powder, or friable substance; the subjecting of any infusible substance to a roasting heat.
c1386Chaucer Can. Yeom. Prol. & T. 251 Oure fourneys eek of Calcinacion [v.r. Calcynacion]. 1393Gower Conf. II. 86 The point of sublimation And forth with calcination. 1583Plat Divers new Exper. (1594) 22 Wheresoeuer there bee any stones that be subject to calcination. 1610B. Jonson Alch. ii. v. (1616) 632 Name the vexations, and the martyrizations Of mettalls in the worke..Putrefaction, Solution, Ablution, Sublimation, Cohobation, Calcination, Ceration, and Fixation. 1678R. R[ussell] tr. Geber ii. i. iv. xiv. 120 Calcination is the Pulverization of a Thing by Fire. 1831R. Knox Cloquet's Anat. 167 Bones..may be freed of the animal matter by calcination. 1875Ure Dict. Arts I. 573 The process of burning lime, to expel the carbonic acid, is one of calcination.
†b. Extended to other processes producing similar results; or used as synonymous with oxidation in general. Obs.
1612Woodall Surg. Mate Wks. (1653) 268 Calcination is solution of bodies into Calx or Alcool, by desiccation of the native humidity, by reverberate ignition, by Amalgamation, by Aqua fortis, the Spirit of salt Vitriol, Sulphur, or the like. 1641French Distill. i. (1651) 9 Calcination..may be done two waies—by firing, by Corosion. 1751Chambers Cycl. s.v. 1791Hamilton Berthollet's Dyeing I. i. i. i. 10 According to its degree of oxydation (calcination). 1822J. Imison Sc. & Art II. 20 The process of combining a metal with oxygen was called calcination, now oxigenation.
2. gen. A burning to ashes, complete combustion.
1616Bullokar, Calcination, a burning, a turning into ashes. 1722Wollaston Relig. Nat. v. 92 The earth reformed out of its ashes and ruins after such a calcination. 1822Blackw. Mag. XII. 280 Those burnings of barns..and the general calcination which has gone through the country.
3. A calcined condition.
1830Lyell Princ. Geol. I. 28 Steno had compared the fossil shells..and traced the various gradations from the state of mere calcination, when their natural gluten only was lost, to the perfect substitution of stony matter.
b. concr. That which has been calcined, a calcined product or ‘calcinate’.
1712tr. Pomet's Hist. Drugs I. 104 Fritt is..a Calcination of those Materials which make Glass. 1725Bradley Fam. Dict. II. s.v., A quarter of an Ounce of this Calcination. |