Product Description
Methylcyclopentadienyl manganese tricarbonyl is an organomanganese metallic compound. It is combustible and highly toxic, and may decompose during combustion to release toxic manganese oxide fumes.
This compound was originally used as an additive for leaded gasoline and was later adopted as a fuel additive to enhance the octane rating of unleaded gasoline.
Properties
| Melting point | -1 °C (lit.) |
| Boiling point | 232-233 °C (lit.) |
| density | 1.38 g/mL at 25 °C (lit.) |
| vapor density | >1 (vs air) |
| vapor pressure | 0.05 mm Hg ( 20 °C) |
| refractive index | n20/D 1.584(lit.) |
| Fp | 205 °F |
| storage temp. | Poison room |
| form | liquid |
| Specific Gravity | 1.388 |
| color | yellow |
| Water Solubility | Insoluble in water. Soluble in hydrocarbon solvents, alcohols, ether, acetone |
| Sensitive | Air Sensitive |
| Merck | 146223 |
| Exposure limits | ACGIH: TWA 0.2 mg/m3 (Skin) |
| OSHA: Ceiling 5 mg/m3 | |
| NIOSH: IDLH 500 mg/m3; TWA 0.2 mg/m3; TWA 1 mg/m3; STEL 3 mg/m3 | |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| InChIKey | LYHJNAIHGFWRKM-UHFFFAOYSA-N |
| LogP | 3.4 at 26℃ |
| CAS DataBase Reference | 12108-13-3(CAS DataBase Reference) |
| EPA Substance Registry System | Methylcyclopentadienyl manganese tricarbonyl (12108-13-3) |
Safety Information
| Hazard Codes | T,N,T+ |
| Risk Statements | 23/24/25-40-50/53-48/23-38-26-24/25 |
| Safety Statements | 23-26-36/37/39-45-61-60-36/37-28 |
| RIDADR | UN 3281 6.1/PG 2 |
| WGK Germany | 3 |
| RTECS | OP1450000 |
| TSCA | Yes |
| HazardClass | 6.1 |
| PackingGroup | II |
| Hazardous Substances Data | 12108-13-3(Hazardous Substances Data) |
| Toxicity | LD50 orally in mice, guinea pig, rabbit: 352; 905; 95 mg/kg; orally in male, female rats: 175 ±33; 89 ±14; LC50 inhalation in rat: 0.22 mg/l (Stara) |
Product Application
This compound is used as a gasoline antiknock agent and octane improver. It serves as an antiknock additive for unleaded gasoline and is widely applied to enhance the octane rating and improve fuel performance.
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