Manganese(II) sulfide

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Manganese(II) sulfide
Manganese(II) sulfide
Identifiers
CAS number 18820-29-6 YesY
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
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Manganese(II) sulfide is a chemical compound of manganese and sulfur. It occurs in nature as the mineral alabandite.

Synthesis[edit]

Manganese(II) sulfide can be prepared by reacting a manganese(II) salt (such as manganese(II) chloride) with ammonium sulfide:

(NH
4
)
2
S
+ MnCl
2
→ 2 NH
4
Cl
+ MnS

Properties[edit]

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[edit]

References[edit]

  1. ^ http://www.espimetals.com/msds's/manganesesulfide.pdf
  2. ^ a b Sicherheitsdatenblatt Alfa-Aesar
  3. ^ WebElements Periodic Table of the Elements