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CAS Number: 31406-67-4
Product Catalog

72-7700
Hafnium › Tetrabenzylhafnium, min. 97%
CAS Number: 31406-67-4
MDL Number: MFCD03427339
Molecular Formula: C28H28Hf
Molecular Weight: 543.01
Chemical Formula: (C6H5CH2)4Hf
Color and Form: yellow pwdr.
Note:  

Stability: air sensitive, heat sensitive, moisture sensitive, store cold

Safety: Hazardous

72-7700

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SECTION 1: Product Identification
Chemical Name: Tetrabenzylhafnium, min. 97%
Product Number: 72-7700
CAS Registry Number: 31406-67-4
Formula: C28H28Hf
EINECS Number: none
Chemical Family: organometallic complex
Synonym: none
SECTION 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title compound 31406-67-4 100 0.5mg/m3 (as Hf) 0.5mg/m3 (as Hf)
SECTION 3: Hazards Identification
Emergency Overview: May be irritating to skin, eyes and respiratory tract. May be harmful if swallowed.
Primary Routes of Exposure: Ingestion, inhalation
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 is available on the physiological effects of ingestion.
Acute Health Effects: May be irritating to skin, eyes, mucous membranes, 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: none
Autoignition Temperature: none
Explosion Limits: none
Extinguishing Medium: carbon dioxide, dry powder or foam
Special Fire Fighting Procedures: 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 fumes of carbon monoxide, and hafnium oxide.
Unusual Fire or Explosion Hazards: Flammable solid. Evolves flammable tetramethylcyclopentadiene with water.
SECTION 6: Accidental Release Measures
Spill and Leak Procedures: Keep away from sources of ignition. Small spills can be mixed with vermiculite, sodium carbonate or other suitable noncombustible adsorbent and swept up. Do not raise dust.
SECTION 7: Handling and Storage
Handling and Storage: Store the material under an inert atmosphere of nitrogen or argon in a tightly sealed container. Store cold to maximize shelf life.
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. Consult with glove manufacturer to determine the proper type of glove.
Ventilation: Handle the material under an inert atmosphere of nitrogen or argon.
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: yellow pwdr.
Molecular Weight: 543.01
Melting Point: no data
Boiling Point: no data
Vapor Pressure: no data
Specific Gravity: no data
Odor: not determined
Solubility in Water: insoluble
SECTION 10: Stability and Reactivity
Stability: air, moisture and heat sensitive (store cold)
Hazardous Polymerization: no hazardous polymerization
Conditions to Avoid: heat and ignition sources, air, and moisture
Incompatibility: strong oxidizing agents, mineral acids and halogens.
Decomposition Products: hafnium oxide, carbon monoxide, carbon dioxide 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 federal, state, and local regulations.
SECTION 14: Transportation
Shipping Name (CFR): Flammable solids, Inorganic, N.O.S.
Hazard Class (CFR): 4.1
Additional Hazard Class (CFR): NA
Packaging Group (CFR): II
UN ID Number (CFR): UN# 3178
Shipping Name (IATA): Flammable solid, Inorganic, N.O.S.
Hazard Class (IATA): 4.1
Additional Hazard Class (IATA): NA
Packaging Group (IATA): II
UN ID Number (IATA): UN# 3178
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: 9/25/2002
Revision Date: 12/16/2011

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