CAS Number: 1277-43-6
Product Catalog

27-0475

Cobalt › Bis(cyclopentadienyl)cobalt(II), min. 98% (Cobaltocene)

Stability: air sensitive, light sensitive, store cold

Safety: Hazardous

Physical Characteristics: melting point 173°C

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SECTION 1: Product Identification
Chemical Name:	Bis(cyclopentadienyl)cobalt (II), min. 98% (Cobaltocene)
Product Number:	27-0475
CAS Registry Number:	1277-43-6
Formula:	(C5H5)2Co
EINECS Number:	215-061-0
Chemical Family:	metallocene
Synonym:	Cobaltocene

SECTION 2: Composition and Information on Ingredients
Ingredient	CAS Number	Percent	ACGIH (TWA)	OSHA (PEL)
Title Compound	1277-43-6	100	0.02mg/m3 (as Co)	no data

SECTION 3: Hazards Identification
Emergency Overview:	Irritating to eyes, skin, and respiratory tract. Limited evidence of a carcinogenic effect.
Primary Routes of Exposure:	Ingestion, inhalation, skin and eyes.
Eye Contact:	Causes irritation, redness, and pain.
Skin Contact:	Causes dermatitis. Causes irritation to skin. Symptoms include redness, itching, and pain.
Inhalation:	Causes irritation to the respiratory tract. Symptoms may include coughing, shortness of breath, nausea, respiratory hypersensitivity, asthma.
Ingestion:	Causes abdominal pain, nausea, vomiting, flushing of the face and ears, mild hypotension, rash, and ringing in the ears.
Acute Health Effects:	Irritating to skin, eyes and respiratory tract. Causes abdominal pain, nausea, vomiting, coughing, and shortness of breath.
Chronic Health Effects:	Repeated oral administration of cobalt salts may reduce thyroid activity, cause blood disease, and damage kidney, heart and lungs. Limited evidence of a carcinogenic effect.
NTP:	No
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 toxic and corrosive fumes.
Unusual Fire or Explosion Hazards:	Flammable solid. Formation of explosive air/solid mixtures is possible.

SECTION 6: Accidental Release Measures
Spill and Leak Procedures:	Eliminate all ignition sources. Avoid contact with water. Small spills can be mixed with vermiculite, powdered limestone, or powdered sodium bicarbonate and swept up.

SECTION 7: Handling and Storage
Handling and Storage:	Store in a cool, dry area away from heat, moisture, and direct sunlight.

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:	If ventilation is not available a respirator should be worn. The use of respirators requires a Respirator Protection Program to be in compliance with 29 CFR 1910.134.
Additional Protection:	No additional protection required.

SECTION 9: Physical and Chemical Properties
Color and Form:	purplish-black xtl.
Molecular Weight:	189.12
Melting Point:	173°C
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, light, moisture sensitive (store cold)
Hazardous Polymerization:	no hazardous polymerization
Conditions to Avoid:	moisture
Incompatibility:	Oxidizing agents, water/moisture and acids
Decomposition Products:	carbon dioxide, carbon monoxide, organic fumes, and cobalt oxide.

SECTION 11: Toxicological Information
RTECS Data:	Intraperitoneal (rat); LD50: 55 mg/kg. Intraperitoneal (mouse); LD50: 80 mg/kg. Intramuscular (rat); TDLo: 200 mg/kg/60W-I.
Carcinogenic Effects:	Insufficient data
Mutagenic Effects:	Insufficient data
Tetratogenic Effects:	No data

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:	Listed in the TSCA inventory.
SARA (Title 313):	Title compound: See category N096 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:	3/11/2002
Revision Date:	8/16/2011