Methylcyclopentadienyl maganese tricarbonyl
An orange liquid with a pleasant odor.
Smoke abater additive for use in fuels.
Registry Numbers and Inventories.
Organometallic; Primary Irritant
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
1.39 g/cm3 (20 C)
Solubility in water
5.0 cp @ 20C
Partition coefficient, pKow
Hazards and Protection.
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Wear appropriate protective gloves, clothing and goggles.
Wear positive pressure self-contained breathing apparatus (SCBA).
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard. Apply water spray or mist to knock down vapors. Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Dike surface flow using soil, sand bags, foamed polyurethane, or foamed concrete. Absorb bulk liquid with fly ash, cement powder, or commercial sorbents. Water spill: Use natural barriers or oil spill control booms to limit spill travel. Remove trapped material with suction hoses.
Avoid contact with light (decomposes).
Decomposes rapidly in sunlight.
Extinguish with water, dry chemicals, foam, or carbon dioxide. Wear goggles and self-contained breathing apparatus.
Combustible material: may burn but does not ignite readily.
When heated to decomposition, this compound emits toxic fumes of carbon monoxide.
Fire may produce irritating, corrosive and/or toxic gases.
TLV (as Mn): ppm; 0.2 mg/m3 (skin) (ACGIH 1994-1995). OSHA PEL: C 5 mg/m3 NIOSH REL: TWA 0.2 mg/m3 skin
Headache and giddiness were noted in one human dermal exposure. Experimental animals have developed excitement, hyperactivity, muscle spasms, tremors, seizures, and coma after lethal doses.
Nausea has occurred in humans. Anorexia and weight loss occurred after both acute and chronic exposures in experimental animals.
Experimental animals exposed to lethal doses develop slow and labored respiration. Chronic inhalation produced chronic bronchitis, lung abscesses, and interstitial pneumonia.
Mmt is readily absorbed through intact skin when dissolved in petroleum distillates. It is not irritating on single skin contact and is not known to be a skin sensitizing agent. Mmt induced mild skin irritation in the rabbit in the standard draize test.
MMT is a moderate eye irritant.
Seek medical assistance.
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.
I; II; III
USCG CHRIS Code
Std. Transport #
IMO Chemical Code
IMO Pollution Category
IMO Hazard code