Cobalt sulfide | Wikipedia audio article
Channel: wikipedia tts
Date: 2018-10-25

This is an audio version of the Wikipedia Article:
Cobalt sulfide

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SUMMARY
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Cobalt sulfide is the name for chemical compounds with a formula CoxSy.  Well-characterized species include minerals with the formula CoS, CoS2, Co3S4, and Co9S8. In general, the sulfides of cobalt are black, semiconducting, insoluble in water, and nonstoichiometric.