bis(tetramethylcyclopentadienyl)chromium

Synonym:1,1',2,2',3,3',4,4'-Octamethylchromocene

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Section 2: Composition and Information on Ingredients
IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL)
Title compound82066-37-3100%0.5mg/m3 (as Cr)0.5mg/m3 (as Cr)

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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

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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.

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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 andIf involved in a fire this material may emit irritating and toxic fumes.
Decomposion Products:
Unusual Fire or Explosion Hazards: Flammable solid.

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

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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.

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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.

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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

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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.

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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

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SECTION 12: Ecological Information
Ecological Information:No information available

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

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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

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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

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SECTION 16 - ADDITIONAL INFORMATION
N/A