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Calcium Sulfide
(redirected from Calcium sulphide)

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calcium sulfide [′kal·se·əm ′səl‚fīd]
(inorganic chemistry)
CaS In pure form, white cubic crystals, slightly soluble in water; used as a base for luminescent materials. Also known as hepar calcies; sulfurated lime.
Calcium Sulfide 

CaS, a salt; colorless crystals with a density of 2.58 g/cm3 and a melting point of 2000°C. Calcium sulfide is obtained by the calcination of CaSO4 with charcoal. It is used in the preparation of luminophors and in the tanning industry for the removal of hair from hides. Calcium hydrosulfide Ca(SH) 2 is used in the production of synthetic fibers.
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What is the common name for hydrated calcium sulphide, the setting agent for plaster of Paris?
Quiz of the Day by The Journal (Newcastle, England)
It is known from earlier studies [3] that oxidation of iron sulphide can occur in semicoke and that calcium sulphide hydrolyzes easily, and hydrogen sulphide ion in water in turn oxidizes to thiosulphate and sulphate.
Leaching behavior of oil shale semicoke: sulphur species by Harzia, H.; Orupold, K.; Habicht, J.; Tenno, T. / Oil Shale
Halton Borough Council is now awaiting a scientific report in the New Year which will detail exactly what chemicals have been fo und but large quan-tities of calcium sulphide waste are belie ved to have been un-earthed.
Arsenic search at new bridge; Alert over poisons at pounds 150m ... by Daily Post (Liverpool, England)
 
 
 
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