Section 1: Product Identification
Chemical Name: Bis(ethylcyclopentadienyl)chromium, min. 98%
CAS Registry Number: 55940-03-9
Formula: [(C2H5)C5H4]2Cr
EINECS Number: none
Chemical Family: metallocene
Synonym: 1,1'-Diethylchromocene
Section 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title compound 55940-03-9 100% 0.5mg/m3 (as Cr) 0.5mg/m3 (as Cr)
Section 3: Hazards Identification
Irritating to eyes, skin an respiratory tract. Harmful by inhalation, in contact with skin and if swallowed.
Emergency Overview:
Chromium (III), a possible metabolite, has acted as a tumorigen and mutagen in animal studies.
Primary Routes of Exposure: Ingestion, inhalation of dust
Eye Contact: Causes slight to mild irritation of the eyes
Skin Contact: Causes slight to mild irritation of the skin. Harmful in contact with skin.
Inhalation: Irritating to the nose, mucous membranes and respiratory tract. Harmful through inhalation.
Ingestion: Harmful if swallowed.
Acute Health Affects: Irritating to skin, eyes and respiratory tract. Harmful through inhalation, in contact with skin and if swallowed.
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: No unusual fire or explosion hazards.
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: If possible, handle the material in an efficient fume hood.
If ventilation is not available, a respirator should be worn. The use of respirators requires a Respiratory
Respirator:
Protection Program to be in compliance with 29 CFR 1910.134.
Ventilation: 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 liq.
Molecular Weight: 238.29
Melting Point: no data
Boiling Point: 95-98°C /1.0mm
Vapor Pressure: no data
Specific Gravity: no data
Odor: none
Solubility in Water: insoluble
SECTION 10: Stability and Reactivity
Stability: air sensitive liquid
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): Self-heating liquid, Inorganic, N.O.S.
Hazard Class (CFR): 4.2
Additional Hazard Class (CFR): NA
Packaging Group (CFR): II
UN ID Number (CFR): UN# 3186
Shipping Name (IATA): Self-heating liquid, Inorganic, N.O.S.
Hazard Class (IATA): 4.2
Additional Hazard Class (IATA): NA
Packaging Group (IATA): II
UN ID Number (IATA): UN# 3186
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
