| Identification | More | [Name]
Manganese sulfide | [CAS]
18820-29-6 | [Synonyms]
ALPHA-MANGANESE SULFIDE
MANGANESE (II) SULFATE
MANGANESE(II) SULFATE, DEHYDRATE
MANGANESE(II) SULFIDE
MANGANESE(II) SULPHATE
MANGANESE SULFATE
MANGANESE SULFIDE
MANGANESE SULPHATE
MANGANOUS SULFATE
MANGANOUS SULFIDE
MANGANOUS SULPHATE
manganesesulfide(mns)
Manganoussulphide
manganese sulphide
MANGANESE(II) SULFIDE,-325 MESH, 99.9%
MANGANESE (II) SULFIDE,-325 MESH GREEN POWDER (99.9%-MN)
MANGANESE SULFIDE 99.99% POWDER-325 MESH
Manganese(II) sulfide, 325 mesh, 99.90%
Manganese(II)sulfide(99.9%-Mn)
Manganese(II) sulfide, 99.9% (metals basis) | [EINECS(EC#)]
242-599-3 | [Molecular Formula]
MnS | [MDL Number]
MFCD00003464 | [Molecular Weight]
87 | [MOL File]
18820-29-6.mol |
| Chemical Properties | Back Directory | [Appearance]
GREEN POWDER | [Melting point ]
1610°C | [density ]
3,99 g/cm3 | [vapor pressure ]
0Pa at 25℃ | [Fp ]
280°C | [solubility ]
insoluble in H2O; soluble in dilute acid solutions | [form ]
Powder | [color ]
Green | [Specific Gravity]
3.99 | [Water Solubility ]
0.47 mg/100 mL (18 ºc) | [Specific Heat Capacity]
Cp(crystal):0.574713J/(g·K),at 25℃ | [Crystal Structure]
Hexagonal, Wurtzite (Zincite) Structure - Space Group P 63mc | [crystal system]
Cube | [Merck ]
14,5740 | [Solubility Product Constant (Ksp)]
pKsp: 9.60 | [Space group]
Fm3m | [Lattice constant]
| a/nm | b/nm | c/nm | α/o | β/o | γ/o | V/nm3 | | 0.52226 | 0.52226 | 0.52226 | 90 | 90 | 90 | 0.1424 |
| [Exposure limits]
ACGIH: TWA 0.02 mg/m3; TWA 0.1 mg/m3
OSHA: Ceiling 5 mg/m3
NIOSH: IDLH 500 mg/m3; TWA 1 mg/m3; STEL 3 mg/m3 | [InChI]
1S/Mn.S | [InChIKey]
CADICXFYUNYKGD-UHFFFAOYSA-N | [SMILES]
S=[Mn] | [Uses]
Additive in steel making. | [Hardness, Mohs]
3.8 | [CAS DataBase Reference]
18820-29-6(CAS DataBase Reference) | [EPA Substance Registry System]
18820-29-6(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S24/25:Avoid contact with skin and eyes . | [RIDADR ]
UN 3077 9 / PGIII | [WGK Germany ]
3
| [TSCA ]
Yes | [REACH Registrations]
Active | [Storage Class]
11 - Combustible Solids | [Hazard Classifications]
Aquatic Chronic 2
Eye Irrit. 2
Skin Irrit. 2
Skin Sens. 1 |
| Hazard Information | Back Directory | [Description]
Manganese(II) sulfide, MnS, occurs in nature as the mineral alabandite (isometric), rambergite (hexagonal), and the recently found browneite (isometric, with sphalerite-type, ZnS, structure, extremely rare and is only known from a meteorite). Manganese(II) sulfide can be formed through the reaction of a manganese(II) salt (such as manganese(II) chloride) with ammonium sulfide. | [Chemical Properties]
pink, green, or brownish green powder(s); three crystal(s) forms: α: green cub; β: red cub; γ: red hexagonal; used as an additive in steel production [HAW93] [MER06] | [Physical properties]
Habit: massive or granular.
Color: Brownish black to black, tarnish upon exposure to
moist air.
Luster: submetallic.
Diaphaneity: opaque.
Cleavage: (110) perfect.
Fracture:
uneven.
Streak: green.
Occurrence: epithermal sulfide vein deposits. | [General Description]
MnS can exist in three polymorphs; α,β,γ, of these, the α phase is most thermodynamically stable. | [Flammability and Explosibility]
Notclassified | [Structure and conformation]
The crystal structure of manganese(II) sulfide is comparable to that of sodium chloride. The pink color of MnS is probably caused by poor coupling between the lowest energy unoccupied Mn orbitals, resulting in discrete states rather than a delocalized band. Consequently, the lowest energy band-to-band electronic transition requires very high-energy (ultraviolet) photons. |
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