Manganese(II) sulfide
{{Redirect|Manganese sulfide|MnS2|Manganese disulfide}}
{{chembox
| verifiedrevid = 440744713
| ImageFile =Sulfid manganatý.PNG
| ImageSize =
| ImageName = Manganese(II) sulfide
| ImageFile1 =
| IUPACName = Manganese(II) sulfide
| OtherNames = Manganese sulfide
Manganese monosulfide
Alabandite (cubic)
Rambergite (hexagonal)
|Section1={{Chembox Identifiers
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo = 18820-29-6
| ChemSpiderID = 7969461
| EC_number = 242-599-3
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = 87Y1S2L575
| PubChem = 87809
| StdInChI=1S/Mn.S
| StdInChIKey = CADICXFYUNYKGD-UHFFFAOYSA-N
| SMILES = [Mn+2].[S-2]
}}
|Section2={{Chembox Properties
| Formula = MnS
| MolarMass = 87.003 g/mol
| Appearance = Red, green or brown powder[https://7cad390533514c32acc8-75d23ce06fcfaf780446d85d50c33f7b.ssl.cf6.rackcdn.com/1692775626-manganese-sulfide-msds.pdf Manganese(II) sulfide MSDS] Stanford Advanced Materials. Retrieved 2023-8-16
| Density = 3.99 g/cm3[http://www.alfa-chemcat.com/daten_msds/D/12835_-_D.pdf Sicherheitsdatenblatt Alfa-Aesar]{{dead link|date=January 2018 |bot=InternetArchiveBot |fix-attempted=yes }}
| MeltingPt = 1610 ˚C[http://www.webelements.com/webelements/compounds/text/Mn/Mn1S1-18820296.html WebElements Periodic Table of the Elements]
| BoilingPt =
| Solubility = 0.0047 g/100 mL (18 °C)
}}
|Section3={{Chembox Structure
| CrystalStruct = Halite (cubic), cF8
| SpaceGroup = Fm3m, No. 225
| Coordination = Octahedral (Mn2+); octahedral (S2−)
| LattConst_a =
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|Section7={{Chembox Hazards
| ExternalSDS =
| MainHazards = Irritant
| FlashPt =
| AutoignitionPt =
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|Section8={{Chembox Related
| OtherAnions = Manganese(II) oxide
Manganese(II) selenide
Manganese(II) telluride
| OtherCations =
| OtherFunction = Manganese disulfide
| OtherFunction_label = manganese sulfides
| OtherCompounds = Chromium(II) sulfide
Iron(II) sulfide
}}
}}
Manganese(II) sulfide is a chemical compound of manganese and sulfur. It occurs in nature as the mineral alabandite (isometric), rambergite (hexagonal), and recently found browneite (isometric, with sphalerite-type structure, extremely rare, known only from a meteorite).Mindat, http://www.mindat.org/min-42751.html
Synthesis
Manganese(II) sulfide can be prepared by reacting a manganese(II) salt (such as manganese(II) chloride) with ammonium sulfide:
:{{chem|(NH|4|)|2|S}} + {{chem|MnCl|2}} → 2 {{chem|NH|4|Cl}} + MnS
Properties
The crystal structure of manganese(II) sulfide is similar to that of sodium chloride.
The pink color of MnS likely results from poor coupling between the lowest energy unoccupied Mn orbitals, resulting in discrete states rather than a delocalized band. Thus the lowest energy band-to-band electronic transition requires very high energy (ultraviolet) photons.
See also
- Alabandite, cubic MnS.
- Manganese disulfide, MnS2, also known as Manganese(IV) Sulfide
- Manganese(II) sulfate, MnSO4
- Rambergite, hexagonal MnS.