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| | Manganese sulfide Basic information |
| | Manganese sulfide Chemical Properties |
| Melting point | 1610°C | | density | 3,99 g/cm3 | | vapor pressure | 0Pa at 25℃ | | Fp | 280°C | | form | Powder | | color | Green | | Specific Gravity | 3.99 | | Water Solubility | 0.47 mg/100 mL (18 ºc) | | Crystal Structure | Hexagonal, Wurtzite (Zincite) Structure - Space Group P 63mc | | Merck | 14,5740 | | Solubility Product Constant (Ksp) | pKsp: 9.60 | | 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 | | CAS DataBase Reference | 18820-29-6(CAS DataBase Reference) | | EPA Substance Registry System | Manganese sulfide (MnS) (18820-29-6) |
| Hazard Codes | Xi | | Risk Statements | 36/37/38 | | Safety Statements | 26-36-24/25 | | RIDADR | UN 3077 9 / PGIII | | WGK Germany | 3 | | TSCA | Yes |
| | Manganese sulfide Usage And Synthesis |
| 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] | | Uses | Additive in steel making. | | Uses | it is used as an intermediate in chemical research& pharmaceutical research. | | 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. |
| | Manganese sulfide Preparation Products And Raw materials |
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