नेम द एंड प्रेजेंट इन द कंपाउंड कैलशियम सल्फाइड
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Calcium sulfide is the chemical compound with the formula CaS. This white material crystallizes in cubes like rock salt. CaS has been studied as a component in a process that would recycle gypsum, a product of flue-gas desulfurization. Like many salts containing sulfide ions, CaS typically has an odour of H2S, which results from small amount of this gas formed by hydrolysis of the salt.
Calcium sulfide
Calcium sulfide
Names
IUPAC name
Calcium sulfide
Other names
Calcium monosulfide,
Hepar calcies,
Sulfurated lime
Oldhamite
Identifiers
CAS Number
20548-54-3 ☑
3D model (JSmol)
Interactive image
Interactive image
ChEBI
CHEBI:81055
ChemSpider
8373113 ☑
ECHA InfoCard
100.039.869
EC Number
243-873-5
KEGG
C17392 ☑
PubChem CID
10197613
UNII
1MBW07J51Q ☑
CompTox Dashboard (EPA)
DTXSID30885140 Edit this at Wikidata
InChI
InChI=1S/Ca.S/q+2;-2 ☑
Key: AGVJBLHVMNHENQ-UHFFFAOYSA-N ☑
InChI=1/Ca.S/rCaS/c1-2
Key: JGIATAMCQXIDNZ-WSLZQIQFAE
InChI=1/Ca.S/q+2;-2
Key: AGVJBLHVMNHENQ-UHFFFAOYAE
SMILES
[Ca]=S
[Ca+2].[S-2]
Properties
Chemical formula
CaS
Molar mass
72.143 g/mol
Appearance
white crystals
hygroscopic
Density
2.59 g/cm3
Melting point
2,525 °C (4,577 °F; 2,798 K)
Solubility in water
hydrolyses
Solubility
insoluble in alcohol
reacts with acid
Refractive index (nD)
2.137
Structure
Crystal structure
Halite (cubic), cF8
Space group
Fm3m, No. 225
Coordination geometry
Octahedral (Ca2+); octahedral (S2−)
Hazards
Main hazards
H2S source
GHS pictograms
GHS07: HarmfulGHS09: Environmental hazard
GHS Signal word
Warning
GHS hazard statements
H315, H319, H335, H400
GHS precautionary statements
P261, P273, P305+351+338
NFPA 704 (fire diamond)
NFPA 704 four-colored diamond
023
Related compounds
Other anions
Calcium oxide
Other cations
Magnesium sulfide
Strontium sulfide
Barium sulfide
Related sulfides
Sodium sulfide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
In terms of its atomic structure, CaS crystallizes in the same motif as sodium chloride indicating that the bonding in this material is highly ionic. The high melting point is also consistent with its description as an ionic solid. In the crystal, each S2− ion is surrounded by an octahedron of six Ca2+ ions, and complementarily, each Ca2+ ion surrounded by six S2− ions.
Calcium sulfide
Calcium sulfide
Names
IUPAC name
Calcium sulfide
Other names
Calcium monosulfide,
Hepar calcies,
Sulfurated lime
Oldhamite
Identifiers
CAS Number
20548-54-3 ☑
3D model (JSmol)
Interactive image
Interactive image
ChEBI
CHEBI:81055
ChemSpider
8373113 ☑
ECHA InfoCard
100.039.869
EC Number
243-873-5
KEGG
C17392 ☑
PubChem CID
10197613
UNII
1MBW07J51Q ☑
CompTox Dashboard (EPA)
DTXSID30885140 Edit this at Wikidata
InChI
InChI=1S/Ca.S/q+2;-2 ☑
Key: AGVJBLHVMNHENQ-UHFFFAOYSA-N ☑
InChI=1/Ca.S/rCaS/c1-2
Key: JGIATAMCQXIDNZ-WSLZQIQFAE
InChI=1/Ca.S/q+2;-2
Key: AGVJBLHVMNHENQ-UHFFFAOYAE
SMILES
[Ca]=S
[Ca+2].[S-2]
Properties
Chemical formula
CaS
Molar mass
72.143 g/mol
Appearance
white crystals
hygroscopic
Density
2.59 g/cm3
Melting point
2,525 °C (4,577 °F; 2,798 K)
Solubility in water
hydrolyses
Solubility
insoluble in alcohol
reacts with acid
Refractive index (nD)
2.137
Structure
Crystal structure
Halite (cubic), cF8
Space group
Fm3m, No. 225
Coordination geometry
Octahedral (Ca2+); octahedral (S2−)
Hazards
Main hazards
H2S source
GHS pictograms
GHS07: HarmfulGHS09: Environmental hazard
GHS Signal word
Warning
GHS hazard statements
H315, H319, H335, H400
GHS precautionary statements
P261, P273, P305+351+338
NFPA 704 (fire diamond)
NFPA 704 four-colored diamond
023
Related compounds
Other anions
Calcium oxide
Other cations
Magnesium sulfide
Strontium sulfide
Barium sulfide
Related sulfides
Sodium sulfide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒ verify (what is ☑☒ ?)
Infobox references
In terms of its atomic structure, CaS crystallizes in the same motif as sodium chloride indicating that the bonding in this material is highly ionic. The high melting point is also consistent with its description as an ionic solid. In the crystal, each S2− ion is surrounded by an octahedron of six Ca2+ ions, and complementarily, each Ca2+ ion surrounded by six S2− ions.
Answered by
1
Calcium+ Sulfur makes up the compound calcium sulfide. Since it is ending in ide there is no other elements attached to it.
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