Manganese(II) sulfide
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| Manganese(II) sulfide | ||
|---|---|---|
 | ||
| IUPAC name Manganese(II) sulfide | ||
| Other names Manganese sulfide | ||
| Identifiers | ||
| CAS number | 18820-29-6  | |
| PubChem | 87809 | |
| Properties | ||
| Molecular formula | MnS | |
| Molar mass | 87.003 g/mol | |
| Appearance | Red, green or brown powder[1] | |
| Density | 3.99 g/cm3[2] | |
| Melting point | 1610 ˚C[3] | |
| Solubility in water | 0.0047 g/100 mL (18 °C)[2] | |
| Structure | ||
| Crystal structure | Halite (cubic), cF8 | |
| Space group | Fm3m, No. 225 | |
| Coordination geometry |
Octahedral (Mn2+); octahedral (S2–) | |
| Hazards | ||
| EU Index | Not listed | |
| Main hazards | Irritant | |
| Related compounds | ||
| Other anions | Manganese(II) oxide | |
| Related manganese sulfides | Manganese disulfide | |
| Related compounds | Chromium(II) sulfide Iron(II) sulfide | |
(verify) (what is: / ?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | ||
| Infobox references | ||
Manganese(II) sulfide is a chemical compound of manganese and sulfur. It occurs in nature as the mineral alabandite.
Synthesis
Manganese(II) sulfide can be prepared by reacting a manganese(II) salt (such as manganese(II) chloride) with ammonium sulfide:
- (NH
4)
2S + MnCl
2 → 2 NH
4Cl + 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.
References
- ↑ http://www.espimetals.com/msds's/manganesesulfide.pdf
- ↑ 2.0 2.1 Sicherheitsdatenblatt Alfa-Aesar
- ↑ WebElements Periodic Table of the Elements
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