Cyclopentadienyl manganese tricarbonyl

  • Tricarbonyl(eta-cyclopentadienyl)manganese
Formula C8H5MnO3
Structure
Description Yellow, crystalline solid with a characteristic odor.

Registry Numbers and Inventories.
CAS 12079-65-1
EC (EINECS/ELINCS) 235-142-4
RTECS OO9720000
RTECS class Organometallic
UN (DOT) 2811
Beilstein/Gmelin 3679 (G)
Swiss Giftliste 1 G-6450
Canada DSL/NDSL NDSL
US TSCA Listed
New Zealand Listed

Properties.
Formula C8H5MnO3
Formula mass 204.07
Melting point, °C -1
Boiling point, °C 232-233
Density 1.39 g/cm3 (20 C) (liquid)
Solubility in water Insoluble
Heat of combustion -4693 (kJ/mol)

Hazards and Protection.
Storage Store in a cool, dry, well-ventilated area away from incompatible substances. Do not expose to air. Store under an inert atmosphere.
Handling Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Do not breathe dust, vapor, mist, or gas. Keep container tightly closed. Avoid ingestion and inhalation. Handle under an inert atmosphere. Store protected from air. Use only in a chemical fume hood.
Protection Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation. Place under an inert atmosphere.
Stability Stable at normal temperatures in tightly closed containers under an inert atmosphere.
Incompatibilities Oxidizing agents.
Decomposition Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Fire fighting Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Fire potential Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards Contact with metals may evolve flammable hydrogen gas.
Combustion products Fire may produce irritating, corrosive and/or toxic gases.
NFPA Health 3
  Flammability 0  
  Reactivity 0  

Health.
Exposure limit(s) TLV (as Mn): 0.1 ppm; mg/m3 (as TWA) (skin) (ACGIH 1994-1995). OSHA PEL: C 5 mg/m3 NIOSH REL: TWA 0.1 mg/m3 skin
Poison_Class 1
Exposure effects May cause lung damage.
   Ingestion May be fatal if swallowed. May cause irritation of the digestive tract. May cause central nervous system depression.
   Inhalation May cause respiratory tract irritation. May cause lung damage.
   Skin May cause skin irritation.
   Eyes May cause eye irritation.

First aid
 
   Ingestion Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. Wash mouth out with water.
   Inhalation Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration.
   Skin Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number 2811
Response guide 154
Hazard class 6.1
Packing Group I; II; III  
USCG CHRIS Code MCT