CAS Number: 1295-20-1
Product Catalog

70-0075

Ytterbium › Tris(cyclopentadienyl)ytterbium (99.9%-Yb) (REO)

Stability: air sensitive, moisture sensitive

Safety: Hazardous

Physical Characteristics: melting point 273°C, boiling point subl. 150°C (vac.)

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SECTION 1: Product Identification
Chemical Name:	Tris(cyclopentadienyl)ytterbium (99.9%-Yb) (REO)
Product Number:	70-0075
CAS Registry Number:	1295-20-1
Formula:	(C5H5)3Yb
EINECS Number:	215-071-5
Chemical Family:	metallocene
Synonym:	tris(.ete.5-cyclopenta-2,5-dien-1-yl)ytterbium

SECTION 2: Composition and Information on Ingredients
Ingredient	CAS Number	Percent	ACGIH (TWA)	OSHA (PEL)
Title Compound	1295-20-1	100	no data	no data

SECTION 3: Hazards Identification
Emergency Overview:	May be irritating to skin, eyes and mucous membranes.
Primary Routes of Exposure:	Ingestion, eyes
Eye Contact:	May cause slight to mild irritation of the eyes.
Skin Contact:	May cause slight to mild irritation of the skin.
Inhalation:	(If dust) May be irritating to the nose, mucous membranes and respiratory tract.
Ingestion:	No information on the physiological effects of ingestion.
Acute Health Effects:	May be irritating to skin, eyes and respiratory tract.
Chronic Health Effects:	No information available on long-term chronic effects.
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, dry powder or foam.
Special Fire Fighting Procedures:	If this product is involved in a fire, firefighters should be equipped with 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 organic fumes.
Unusual Fire or Explosion Hazards:	Flammable. 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:	Handle and store the material under an inert atmosphere of nitrogen or argon. Keep away from air and moisture.

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 appropriate chemical resistant gloves and protective clothing.
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 Respiratory 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:	green xtl.
Molecular Weight:	368.33
Melting Point:	273°C
Boiling Point:	subl. 150 (vac.)
Vapor Pressure:	no data
Specific Gravity:	no data
Odor:	none
Solubility in Water:	insoluble

SECTION 10: Stability and Reactivity
Stability:	air and moisture sensitive
Hazardous Polymerization:	No hazardous polymerization
Conditions to Avoid:	none
Incompatibility:	Air, oxidizing agents, halogens, protic reagents
Decomposition Products:	carbon monoxide, carbon dioxide, ytterbium oxide and organic fumes.

SECTION 11: Toxicological Information
RTECS Data:	No information available in the RTECS files.
Carcinogenic Effects:	no data
Mutagenic Effects:	no 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:	Not listed in the TSCA inventory.
SARA (Title 313):	Title compound not listed.
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:	5/19/2003
Revision Date:	12/14/2011