Now rare or Obs. [f. SULPHUR v. or SULPHURATE v.: see -ATION. Cf. F. sulfuration. (L. sulfurātio = vein of sulphur.)]

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  1.  Anointing with sulphur. rare.

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1713.  Bentley, Rem. Freethinking, § 50. Charms, sulphurations, dippings in the sea.

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  2.  Fumigation with sulphur; SULPHURING 2.

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1791.  Hamilton, Berthollet’s Dyeing, I. I. III. x. 294. Sulphuration [is] exposure to the vapour of sulphur.

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1839.  Ure, Dict. Arts, 1218. Sulphuration, is the process by which woollen, silk, and cotton goods are exposed to the vapours of burning sulphur, or to sulphurous acid gas.

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1853.  R. Hunt, Man. Photogr., 93. When the paper is nearly … dry, it must be exposed in a closed vessel to sulphuretted hydrogen gas…. It is then a second time submitted to sulphuration.

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1858.  [see SULPHURING vbl. sb. 2].

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  3.  Combination with sulphur.

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1796.  Kirwan, Elem. Min. (ed. 2), II. 511. Pelletier says 100 parts Tin weigh after Sulphuration 116,5.

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1826.  Henry, Elem. Chem., I. 531. A sulphuret of the first degree of sulphuration.

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1834.  Turner, Chem. (1847), 425. The two lowest degrees of sulphuration, the tetrasulphuret and disulphuret.

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  4.  Treating with sulphur, vulcanization.

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1853.  Ure, Dict. Arts (ed. 4), I. 366. The sulphuration of caoutchouc, a valuable invention.

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