Density  1.39  Melting point  2.2 oC  Boiling point  233 oC

Used as Gasoline antiknock additive gasoline additive unleaded gasoline octane number improver

Synonyms:(methylcyclopentadienyl)manganesetricarbonyl[qr];(methylcyclopentadienyl)tricarbonyl-manganes;(Methylcyclopentadienyl)tricarbonylmanganese;(methylcyclopentadienyl)tricarbonylmanganese[qr];2-methylcyclopentadienyl;2-methylcyclopentadienylmanganesetricarbonyl[qr];Ak-33x;ak-33x[qr]

CAS:12108-13-3

MF:C9H7MnO3 5*

MW:218.09

EINECS:235-166-5

Product Categories:metallocene;Catalysis and Inorganic Chemistry;Chemical Synthesis;Manganese;Organometallics

METHYLCYCLOPENTADIENYLMANGANESE TRICARBONYL Chemical 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

color yellow

Specific Gravity1.388

Water Solubility Insoluble in water. Soluble in hydrocarbon solvents, alcohols, ether, acetone

Sensitive Air Sensitive

Merck 14,6223

Stability:Stable. Incompatible with strong oxidizing agents.

InChIKeyLYHJNAIHGFWRKM-UHFFFAOYSA-N

CAS DataBase Reference12108-13-3(CAS DataBase Reference)

EPA Substance Registry SystemMethylcyclopentadienyl 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

ToxicityLD50 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)

METHYLCYCLOPENTADIENYLMANGANESE TRICARBONYL Usage And Synthesis

Chemical PropertiesManganese, tricarbonyl methylcyclo-pentadienyl is a dark orange liquid. Faintly pleasant, herb-like odor.

UsesUsed for doping of ZnSe nanocrystals 1 Reactant for: Aldol addition reactions 2 Preparation of homo- and heteronuclear mixed biscarbene complexes with conjugated bithiophene units 3 Molecular fragmentation using shaped femtosecond laser pulses 4 Preparation of MnAs thin films grown on GaAs(001) by metalorganic vapour phase epitaxy (MOVPE) 5

UsesAntiknock fuel additive; dopant for Mn.

UsesOctane enhancer in gasoline; reduces smoke emissions from home, commercial, industrial, and marine burners

General DescriptionAn orange liquid with a pleasant odor. Slightly soluble in water and denser than water. May be toxic by inhalation, ingestion and/or skin absorption.

Air & Water ReactionsSlightly soluble in water.

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

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

Health HazardIn 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.

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

Safety ProfilePoison 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.

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

ShippingUN3281 Metal carbonyls, liquid n.o.s. Hazard class 6.1. Technical name required, Potential Inhalation Hazard (Special Provision 5).

IncompatibilitiesLight 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.

Waste DisposalGenerators 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.