hydrosulphiden.
/hʌɪdrəʊˈsʌlfʌɪd/ Chemistry.
A compound obtained by the union of hydrogen sulphide (sulphuretted hydrogen) with a metal or radical; a sulphydrate.
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hydrosulphuret1800
hydrosulphide1849
1849 D. Campbell Pract. Text-bk. Inorg. Chem. 46 Metallic oxides, capable of precipitation by sulphide of hydrogen or hydrosulphide of ammonium, in acid, neutral, or alkaline solutions.
1871 H. E. Roscoe Lessons Elem. Chem. (new ed.) xix. 215 At the ordinary temperature the sulphide loses NH3, and is converted into a crystalline mass of the hydrosulphide NH4HS, a very volatile body, which decomposes above 50° into ammonia and sulphuretted hydrogen.
This entry has not yet been fully updated (first published 1899; most recently modified version published online June 2018).
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n.1849