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BIS(TETRAMETHYLCYCLOPENTADIENYL)CHROMIUM 82066-37-3 MSDS

Section 1: Product Identification
   Chemical Name:       Bis(tetramethylcyclopentadienyl)chromium, min. 98%    
   CAS Registry Number:       82066-37-3    
   Formula:       [(CH3)4C5H]2Cr    
   EINECS Number:       none    
   Chemical Family:       metallocene    
   Synonym:       1,1',2,2',3,3',4,4'-Octamethylchromocene    

Section 2: Composition and Information on Ingredients
   Ingredient       CAS Number       Percent       ACGIH (TWA)       OSHA (PEL)    
   Title compound       82066-37-3       100%       0.5mg/m3 (as Cr)       0.5mg/m3 (as Cr)    

Section 3: Hazards Identification
   May be irritating to eyes, skin and respiratory tract. Chromium (III), a possible metabolite, has acted as a
   Emergency Overview:
   tumorigen and mutagen in animal studies.
   Primary Routes of Exposure:       Ingestion, inhalation of dust.    
   Eye Contact:       May cause slight to mild irritation of the eyes    
   Skin Contact:       May cause slight to mild irritation of the skin.    
   Inhalation:       May be irritating to the nose, mucous membranes and respiratory tract.    
   Ingestion:       No information on the physiological effects of ingestion of this specific compound.    
   Acute Health Affects:       May be irritating to skin, eyes and respiratory tract.    
   It is possible that prolonged exposure could result in formation of Chromium (III) salts in the human body.
   Chronic Health Affects:       Although less toxic than Chromium (VI), some animal studies show Chromium (III) to act as a mutagen and    
   tumorigen.
   NTP:       Yes    
   IARC:       No    
   OSHA:       No    

SECTION 4: First Aid Measures
   Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need
   Eye Exposure:
   assistance in keeping their eye lids open. Get immediate medical attention.
   Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if
   Skin Exposure:
   irritation persists.
   Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty
   Inhalation:
   in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
   Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce
   Ingestion:
   vomiting only if directed by medical personnel.

SECTION 5: Fire Fighting Measures
   Flash Point:       none    
   Autoignition Temperature:       none    
   Explosion Limits:       none    
   Extinguishing Medium:       carbon dioxide, foam or dry powder    
   If this product is involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure
   Special Fire Fighting Procedures:
   self-contained breathing apparatus and full protective clothing.
   Hazardous Combustion and       If involved in a fire this material may emit irritating and toxic fumes.    
   Decomposion Products:
   Unusual Fire or Explosion Hazards: Flammable solid.

SECTION 6: Accidental Release Measures
   Spill and Leak Procedures:       Small spills can be mixed with vermiculite or sodium carbonate and swept up.    

SECTION 7: Handling and Storage
   Store in a tightly sealed container. Handle and store under an inert atmosphere of nitrogen or argon.
   Handling and Storage:
   Exposure to air may result in degradation of the product.

SECTION 8: Exposure Controls and Personal Protection
   Eye Protection:       Always wear approved safety glasses when handling a chemical substance in the laboratory.    
   Skin Protection:       Wear protective clothing and gloves.    
   Ventilation:       Material may form a fine dust. If possible, handle the material in an efficient fume hood.    
   If in form of fine dust and ventilation is not available a respirator should be worn. The use of respirators
   Respirator:
   requires a Respirator Protection Program to be in compliance with 29 CFR 1910.134.
   Ventilation:       Material may form a fine dust. If possible, handle the material in an efficient fume hood.    
   Additional Protection:       No additional protection required.    

SECTION 9: Physical and Chemical Properties
   Color and Form:       red xtl.    
   Molecular Weight:       294.40    
   Melting Point:       no data    
   Boiling Point:       no data    
   Vapor Pressure:       no data    
   Specific Gravity:       no data    
   Odor:       none    
   Solubility in Water:       insoluble    

SECTION 10: Stability and Reactivity
   Stability:       air sensitive solid    
   Hazardous Polymerization:       none    
   Contact with oxygen. Keep away from heat and ignition sources including open flame and electrostatic
   Conditions to Avoid:
   discharge.
   Incompatibility:       strong oxidizing agents    
   Decomposition Products:       carbon dioxide, carbon monoxide, organic fumes and chromium oxide.    

SECTION 11: Toxicological Information
   RTECS Data:       No information available from the RTECS files.    
   Carcinogenic Effects:       No data available    
   Mutagenic Effects:       No data available    
   Tetratogenic Effects:       No data available    

SECTION 12: Ecological Information
   Ecological Information:       No information available    

SECTION 13: Disposal Considerations
   Disposal:       Dispose of according to local, state and federal regulations.    

SECTION 14: Transportation
   Shipping Name (CFR):       Flammable solids, Organic, N.O.S.    
   Hazard Class (CFR):       4.1    
   Additional Hazard Class (CFR):       NA    
   Packaging Group (CFR):       II    
   UN ID Number (CFR):       UN# 1325    
   Shipping Name (IATA):       Flammable solid, Organic, N.O.S.    
   Hazard Class (IATA):       4.1    
   Additional Hazard Class (IATA):       NA    
   Packaging Group (IATA):       II    
   UN ID Number (IATA):       UN# 1325    

SECTION 15: Regulatory Information
   TSCA:       not listed on the TSCA inventory    
   SARA (Title 313):       Title compound: see Category Code N090 for reporting    
   Second Ingredient:       none    


SECTION 16 - ADDITIONAL INFORMATION
N/A

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