Section 1: Product Identification
Chemical Name: Pentamethylcyclopentadienyltantalum tetrachloride, 98%
CAS Registry Number: 71414-47-6
Formula: [C5(CH3)5]TaCl4
EINECS Number: none
Chemical Family: metallocene
Synonym: Tantalum tetrachloride, pentamethylcyclopentadienyl complex
Section 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title compound 71414-47-6 100% no data no data
Section 3: Hazards Identification
Corrosive to skin and eyes. Material hydrolyzes in contact with moisture releasing toxic and corrosive fumes
Emergency Overview:
of hydrogen chloride and aqueous hydrochloric acid.
Primary Routes of Exposure: Contact with skin and eyes. Inhalation of dust.
Eye Contact: Corrosive to the eyes.
Skin Contact: Causes chemical burns to the skin.
Inhalation: Forms hydrogen chloride in the presence of moisture. Inhalation will lead to burning of the respiratory tract.
Ingestion: If large amounts ingested, severe burns to the gastrointestinal tract may occur.
Corrosive to skin, eyes and respiratory tract. Causes eye and skin burns, dyspnea (difficulty breathing) and
Acute Health Affects:
pulmonary edema.
Chronic Health Affects: No information available on long-term chronic effects.
NTP: No
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 in
Inhalation:
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: no data
Autoignition Temperature: no data
Explosion Limits: no data
Extinguishing Medium: carbon dioxide, dry powder or foam.
If involved in a fire, fire fighters should be equipped with NIOSH approved positive pressure self-contained
Special Fire Fighting Procedures:
breathing apparatus and full protective clothing.
Hazardous Combustion and If involved in a fire this material may release corrosive hydrogen chloride 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 powdered sodium bicarbonate, lime, or calcium 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.
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: Material may emit corrosive fumes. 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: Material may emit corrosive fumes. Handle the material in an efficient fume hood.
Additional Protection: No additional protection required.
SECTION 9: Physical and Chemical Properties
Color and Form: orange powder
Molecular Weight: 458
Melting Point: 220°
Boiling Point: no data
Vapor Pressure: no data
Specific Gravity: no data
Odor: pungent odor
Solubility in Water: reacts with water
SECTION 10: Stability and Reactivity
Stability: air and moisture sensitive
Hazardous Polymerization: No hazardous polymerization.
Conditions to Avoid: none
Incompatibility: water and halogens
Decomposition Products: carbon monoxide, carbon dioxide, tantalum oxide, chlorinated organics, 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): Corrosive solids, N.O.S.
Hazard Class (CFR): 8
Additional Hazard Class (CFR): NA
Packaging Group (CFR): II
UN ID Number (CFR): UN# 1759
Shipping Name (IATA): Corrosive solid, N.O.S.
Hazard Class (IATA): 8
Additional Hazard Class (IATA): NA
Packaging Group (IATA): II
UN ID Number (IATA): UN# 1759
SECTION 15: Regulatory Information
TSCA: Not listed in the TSCA inventory
SARA (Title 313): Title compound not listed.
Second Ingredient: none
SECTION 16 - ADDITIONAL INFORMATION
N/A
