| 单词 | iron sulphide | 
| 释义 | > as lemmasiron sulphide   iron sulphide  n. any of various binary compounds of iron and sulphur; spec. iron disulphide, FeS2 (cf. pyrite n. 2). ΚΠ 1814    J. Murray Elements Chem. 		(ed. 3)	 I. 413  				In some of the varieties of the alum of commerce,..it is often contaminated with a little sulphide of iron.]			 1861    Executive Documents House of Representatives 1860–61 176  				The sulphate of lime is reduced to a sulphide of calcium, and this latter converted into the iron sulphide. 1934    Science 2 Nov. 401/2  				Stony matter with small proportions of..iron sulphide (trolite [read troilite], 4.98 per cent.). 2012    Prince George Citizen 		(Brit. Columbia)	 		(Nexis)	 9 July 1  				The smart prospector..knows that where there's that imposter, iron sulphide, the real stuff is often present. < as lemmas  | 
	
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