sb. Chem. Also -id. [f. SULPHUR- + -IDE.]

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  1.  A compound of sulphur with another element (usually denoted by a qualifying term).

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1836.  T. Thomson, Min., Geol., etc., I. 81. Sulphide of arsenic.

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1856.  Miller, Elem. Chem., Inorg., VII. § 1. 584. An insoluble metallic sulphide.

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1875.  A. S. Taylor, Poisons (ed. 3), 5. The alkaline sulphides (sodium and ammonium).

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1880.  J. W. Legg, Bile, 30. Sulphide of carbon and benzol are … good solvents.

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  b.  Hydrogen sulphide, sulphide of hydrogen, sulphuretted hydrogen, H2S. (Also attrib.)

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1849.  D. Campbell, Inorg. Chem., 264. Sulphide of hydrogen gas.

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1873.  [see HYDROGEN 2 b].

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1881.  Nature, 6 Oct., 550/2. This sulphide of hydrogen tube.

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  2.  attrib., chiefly with reference to the treatment of metallic sulphides in manufacturing processes.

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1893.  Westm. Gaz., 14 July, 6/1. The hitherto intractable sulphide ore.

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1899.  Daily News, 22 April, 2/7. This company’s sulphide plant. Ibid. (1900), 10 May, 2/7. The sulphide mill.

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  Hence Sulphide v. trans., to convert into or impregnate with a sulphide; also Sulphidation, impregnation with a sulphide.

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1904.  U. S. Geol. Surv., Monogr., XLVII. 205. Sulphidation is the union of sulphur with a metal forming sulphides.

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