Grundinformationen
- CAS
20548-54-3- Standard-SMILES
[Ca+2].[S-2]- InChIKey
AGVJBLHVMNHENQ-UHFFFAOYSA-N- Summenformel
- CaS
- Durchschnittliche Molmasse
- 72,15 g/mol
- Monoisotopische Masse
- 71,934662
Überblick
Calcium sulfide is an organic molecular entity.
Namen und Bezeichner
- Bevorzugter Name
- Calcium Sulfide
- IUPAC
- calcium sulfide
- Lokaler Name
- Calciumsulfid
- Englischer Name
- CALCIUM SULFIDE
- Summenformel
- CaHS
- Molmasse
- 73.15
Namen und Synonyme
Calcium sulphide1MBW07J51QHEPAR SULPHURIS CALCAREUMDTXSID30885140RefChem:54629Hepar sulphuris calcareum 7120Hepar sulfuris 30 Special OrderHepar Sulphuris Calcareum 200ckDTXCID901024539Bestmade Natural Products Hepar SulphurisBestmade Natural Products Calcium Sulfide Hepar Sulph (Calc Sulf)243-873-5
Weitere Namen anzeigen
BaumolOldhamiteC.I. 77245thioxocalciumPigment White 9Calcium-sulphide-calciumsulfide(cas)C.I. Pigment White 9
20548-54-3calcium monosulfideCalcium SulfideCalcium sulfide (CaS)CRUDE CALCIUM SULFIDEHepar SulfHepar sulfuris calcareumHEPAR SULPH
Datenbank-Bezeichner
- CAS
20548-54-3- PubChem CID
- 10197613
- DTXSID
Eigenschaften
Berechnete Struktureigenschaften
- Polarare Oberfläche (TPSA)
- 1 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 1
- Frei drehbare Bindungen
- 0
- Schwere Atome
- 2
- Formalladung
- 0
- Komplexität
- 0
Experimentelle und physikochemische Eigenschaften
Chemical ClassesMetals -> Metals, Inorganic Compounds
CosmeticsDepilatory
SpringerMaterials Propertiesthermal expansion coefficient
Density2.58 @25 °C
Melting Point2524 °C
Physical DescriptionWhite solid when pure; Crude and luminous forms may be yellowish to pale-grey; Odor of hydrogen sulfide in moist air; [Merck Index] Colorless powder with an odor of rotten eggs; [Alfa Aesar MSDS]
Physikochemische Eigenschaften
- Schmelzpunkt
- 2000 °C · 2000 °C
- Dichte
- 2.6 · 2.6
- Brechungsindex
- 2.12 · 2.12
- Löslichkeit
- 2 O; · slightly soluble in H2O; insoluble in ethanol
- Aggregatzustand
- Powder
- Wichte
- 2.5 · 2.5
Sicherheit und Regulatorisches
GHS-Klassifizierung
GHS Classification
Warning
H315: Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P391, P403+P233, P405, and P501 (click each P-code to see the statement)
Danger
H228 (54.9%): Flammable solid [Danger Flammable solids]
P210, P240, P241, P261, P264, P264+P265, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P391, P403+P233, P405, and P501 (click each P-code to see the statement)
Gefahrenhinweise
Regulatory Information
Chemical: Calcium sulfide (CaS)
Calcium sulphide: Does not have an individual approval but may be used under an appropriate group standard
Other Safety InformationIMAP assessments - Soluble Sulfide Salts: Human health tier II assessment
Hazards SummaryOxidizes in dry air and decomposes in moist air; [Merck Index] Decomposed by water; A skin and strong eye irritant; [Alfa Aesar MSDS]
Hazard Classes and Categories
Flam. Sol. 1 (54.9%)
Hazardous to the aquatic environment (acute) - category 1
STOT SE 3
Sicherheit und Schutzausrüstung
Protective Action Criteria (PAC)
1.2 [mg/m3]
13 [mg/m3]
79 [mg/m3]
Sicherheitsdaten
Chemie und Industrie
Pharmakologische Informationen
MeSH Pharmacological ClassificationSubstances that prevent infectious agents or organisms from spreading or kill infectious agents in order to prevent the spread of infection.
Verwendung und Herstellung
Uses
Used in phosphors, lubricant additives, and luminous paints; Has been used in wound treatment (veterinary medicine); [Merck Index]
Painting (Pigments, Binders, and Biocides) [Category: Paint]
Household ProductsInformation on 1 consumer products that contain calcium sulphide in the following categories is provided:
Use ClassificationCosmetics -> Depilatory
General Manufacturing InformationCalcium sulfide (CaS): ACTIVE
Anwendungen
OccurrenceCalcium sulfide occurs in nature as the mineral oldhamite. It has several applications. The ‘luminous’ calcium sulfide is used in phosphors, luminous paints and varnishes. Calcium sulfide also is used as an additive to lubri cants; and as a flotation agent in ore extraction.
VerwendenCALCIUM SULFIDE is used in electron emitters. Luminous CaS used for making luminous paints or varnishes.
Darstellung
synthetischeCalcium sulfide can be prepared by the direct reaction of the elements, calcined in an inert atmosphere, at a 1:1.05 molecular ratio: Ca＋S＋heat→CaS This white material crystallizes in a cubic structurelike rock salt and the bonding is highly ionic. This is consistent with its description as an ionic solid. CaS can also be produced by the “carbothermic reduction” of calcium sulfate, which entails the conversion of carbon, usually as charcoal, to CO2: CaSO4＋ 2C→CaS＋ 2CO2 This can react further: 3CaSO4＋ CaS→4CaO＋ 4SO2 Thus, this type of preparation cannot be used to prepare a pure CaS salt. Calcium sulfide is available commercially as the pure sulfide as well as the polysulfide due to its extensive usage in the past as an insecticide both agriculturally and in home gardens.
Zugehörige Reaktionen
1
Notizen zur Verbindung
Wird geladen…