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12108-13-3
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???(??):
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Methylcyclopentadienyl manganese tricarbonyl
???(??):
METHYLCYCLOPENTADIENYLMANGANESE TRICARBONYL;Tricarbonyl(methylcyclopentadienyl)manganese;(methylcyclopentadienyl)manganesetricarbonyl[qr];carbon monoxide,manganese,5-methylcyclopenta-1,3-diene;CI-2;MCMT;Ak-33x;mmt[qr];ci-2[qr];EthylMMT
CBNumber:
CB9231289
???:
C9H7MnO35*
??? ??:
218.09
MOL ??:
12108-13-3.mol

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???
-1 °C (lit.)
?? ?
232-233 °C (lit.)
??
1.38 g/mL at 25 °C (lit.)
?? ??
>1 (vs air)
???
0.05 mm Hg ( 20 °C)
???
n20/D 1.584(lit.)
???
205 °F
?? ??
Poison room
??? ??
??
??
???
Specific Gravity
1.388
???? ??
human
???
?? ???. ???? ??, ???, ???, ???? ???
??
Air Sensitive
Merck
14,6223
?? ??
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
???
????. ?? ???? ???? ????.
InChI
1S/C6H7.3CO.Mn/c1-6-4-2-3-5-6;3*1-2;/h2-5H,1H3;;;;
InChIKey
LYHJNAIHGFWRKM-UHFFFAOYSA-N
SMILES
[Mn].[C-]#[O+].[C-]#[O+].[C-]#[O+].C[C]1[CH][CH][CH][CH]1
LogP
3.4 at 26℃
CAS ??????
12108-13-3(CAS DataBase Reference)
EPA
Methylcyclopentadienyl manganese tricarbonyl (12108-13-3)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? T,N,T+
?? ???? ?? 23/24/25-40-50/53-48/23-38-26-24/25
????? 23-26-36/37/39-45-61-60-36/37-28
????(UN No.) UN 3281 6.1/PG 2
OEB C
OEL TWA: 0.2 mg/m3 [skin]
WGK ?? 3
RTECS ?? OP1450000
TSCA TSCA listed
?? ?? 6.1
???? II
???? ??? 6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials
Hazard Classifications Acute Tox. 1 Inhalation
Acute Tox. 2 Dermal
Acute Tox. 3 Oral
Aquatic Acute 1
Aquatic Chronic 1
Skin Irrit. 2
STOT RE 1 Inhalation
?? ?? ??? 12108-13-3(Hazardous Substances Data)
?? 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)
???? ?? KE-34053
????(GHS): Skull and Crossbones (GHS06)Health Hazard (GHS08)Environment (GHS09)
?? ?: Danger
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H301 ??? ??? ?? ?? ?? - ?? ?? 3 ?? P264, P270, P301+P310, P321, P330,P405, P501
H315 ??? ??? ??? ????? ?? ????? ?? 2 ?? P264, P280, P302+P352, P321,P332+P313, P362
H372 ??? ?? ?? ???? ??(??, ??? ?? ??? ?? ??? ??)? ??? ??? ?? ???? ?? - ?? ?? ?? 1 ?? P260, P264, P270, P314, P501
H410 ??? ??? ?? ????? ?? ??? ?? ????? ?? - ?? ?? 1 ?? P273, P391, P501
??????:
P262 ?, ??, ??? ?? ??? ???.
P273 ???? ???? ???.
P280 ????/???/???/?????? ?????.
NFPA 704
0
4 0

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An orange liquid with a pleasant odor. Slightly soluble in water and denser than water. May be toxic by inhalation, ingestion and/or skin absorption. Faintly pleasant, herb-like odor.

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Methylcyclopentadienyl manganese tricarbonyl is used for doping of ZnSe nanocrystals
It can also be used as a reactant for:
Aldol addition reactions
Preparation of homo- and heteronuclear mixed biscarbene complexes with conjugated bithiophene units
Molecular fragmentation using shaped femtosecond laser pulses
Preparation of MnAs thin films grown on GaAs(001) by metalorganic vapour phase epitaxy (MOVPE)

?? ??

Methylcyclopentadienyl manganese tricarbonyl is generally used as an anti-knock agent for gasoline, to increase the octane number of gasoline, thereby preventing engine detonation and improving combustion efficiency. Additionally, it can be used industrially as an organic synthesis catalyst, a precursor in chemical vapor deposition methods for preparing high-performance films, and in laboratory research for doping semiconductor nanocrystals (such as ZnSe) to study their material properties.

?? ??

Methylcyclopentadienyl manganese tricarbonyl (hereinafter "MMT") is an antiknock agent for gasoline discovered in the fifties and sold commercially by Ethyl Corporation. It can be made by the reaction of carbon monoxide with bis(methylcyclopentadienyl) manganese referred to as "carbonylation". 

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Slightly soluble in water.

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METHYLCYCLOPENTADIENYLMANGANESE TRICARBONYL decomposes when exposed to light. METHYLCYCLOPENTADIENYLMANGANESE TRICARBONYL is stable in water.

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Toxic by ingestion, inhalation, and skinabsorption. Central nervous system impairment;lung, liver and kidney damage.

????

In concentrated form METHYLCYCLOPENTADIENYLMANGANESE TRICARBONYL is highly toxic by all routes of exposure. Approximately 5-15 ml, when spilled on the hand and wrist of a worker, produced toxic effects within 3-5 minutes.

????

When heated to decomposition, METHYLCYCLOPENTADIENYLMANGANESE TRICARBONYL emits toxic fumes of carbon monoxide. Hazardous polymerization may not occur.

Safety Profile

Poison by ingestion, inhalation, skin contact, intravenous, and intraperitoneal routes. A slimn irritant. When heated to decomposition it emits toxic fumes of CO. See also MANGANESE COMPOUNDS and CARBONYLS.

??? ??

MMT is used as an octane improver in unleaded gasoline, other distillate fuels, and fuel oils; as a smoke abater in fuels.

?? ??

UN3281 Metal carbonyls, liquid n.o.s. Hazard class 6.1. Technical name required, Potential Inhalation Hazard (Special Provision 5).

? ???

Light causes decomposition. May be air-reactive. A strong reducing agent. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, halogens.

??? ??

Generators of waste (equal to or greater than 100 kg/mo) containing this contaminant, EPA hazardous waste number N450, must conform to USEPA regulations for storage, transportation, treatment, and disposal of waste. Dispose of waste material as hazardous waste using a licensed disposal contractor to an approved landfill. Dispose of contents and container to an approved waste disposal plant. Containers must be disposed of properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office. All federal, state, and local environmental regulations must be observed. Do not discharge into drains or sewers.

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