Product Catalog
CAS Number: 12212-68-9

24-0145

Chromium › Bis(ethylbenzene)chromium [mixture of (C2H5)×C6H6η× where x = 0-4)]

Stability: air sensitive

Safety: Hazardous

Physical Characteristics: boiling point 140-160°C/1mm, density 1.14-1.18

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SECTION 1: Product Identification
Chemical Name:	Bis(ethylbenzene)chromium (mixture of (C2H5)XC6H6-x where x= 0-4)
Product Number:	24-0145
CAS Registry Number:	12212-68-9
Formula:	[(C2H5)xC6H6-x]2Cr
EINECS Number:	none
Chemical Family:	arene-metal complex
Synonym:	ethylated bis-benzene chromium

SECTION 2: Composition and Information on Ingredients
Ingredient	CAS Number	Percent	ACGIH (TWA)	OSHA (PEL)
Title Compound	12212-68-9	100	0.5mg/m3 (as Cr)	0.5mg/m3 (as Cr)

SECTION 3: Hazards Identification
Emergency Overview:	May be irritating to eyes, skin and respiratory tract. Chromium (III), a possible decomposition product or metabolite, has acted as a 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:	Dust may be irritating to the nose, mucous membranes and respiratory tract.
Ingestion:	No information is available on the acute physiological effects of ingestion of this specific compound.
Acute Health Effects:	May be irritating to skin, eyes and respiratory tract.
Chronic Health Effects:	It is possible that prolonged exposure could result in formation of chromium (III) salts in the human body. 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
Eye Exposure:	Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need assistance in keeping their eye lids open. Get immediate medical attention.
Skin Exposure:	Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if irritation persists.
Inhalation:	Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
Ingestion:	Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce vomiting only if directed by medical personnel.

SECTION 5: Fire Fighting Measures
Flash Point:	not applicable
Autoignition Temperature:	none
Explosion Limits:	none
Extinguishing Medium:	carbon dioxide, foam or dry powder
Special Fire Fighting Procedures:	If this product is involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure self-contained breathing apparatus and full protective clothing.
Hazardous Combustion and Decomposion Products:	If involved in a fire this material may emit irritating and toxic fumes.
Unusual Fire or Explosion Hazards:	Flammable liquid. 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
Handling and Storage:	Store in a tightly sealed container. Handle and store under an inert atmosphere of nitrogen or argon. 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.
Respirator:	No respirator required.
Additional Protection:	No additional protection required.

SECTION 9: Physical and Chemical Properties
Color and Form:	dark brown liq.
Molecular Weight:	not applicable
Melting Point:	no data
Boiling Point:	140-160°C/1mm
Vapor Pressure:	no data
Specific Gravity:	1.14-1.18
Odor:	none
Solubility in Water:	insoluble

SECTION 10: Stability and Reactivity
Stability:	air sensitive
Hazardous Polymerization:	no hazardous polymerization
Conditions to Avoid:	Contact with oxygen.
Incompatibility:	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 liquids, N.O.S.
Hazard Class (CFR):	3
Additional Hazard Class (CFR):	NA
Packaging Group (CFR):	II
UN ID Number (CFR):	UN# 1993
Shipping Name (IATA):	Flammable liquid, N.O.S.
Hazard Class (IATA):	3
Additional Hazard Class (IATA):	NA
Packaging Group (IATA):	II
UN ID Number (IATA):	UN# 1993

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
Third Ingredient:	none

SECTION 16: Other Information
Disclaimer:	The information herein is believed to be accurate and reliable as of the date compiled. However, Strem Chemicals, Inc. makes no representation, warranty, or guarantee of any kind with respect to the information contained in this document or any use of the product based on this information.
Preparation Date:	3/19/2002
Revision Date:	5/11/2011