Section 1: Product Identification
Chemical Name: t-Butylphosphine, min. 95% TBP
CAS Registry Number: 2501-94-2
Formula: (C4H9)PH2
EINECS Number: none
Chemical Family: organophosphorus ligand
Synonym: tert-Butylphosphane; (1,1-dimethylethyl)phosphane; 1,1-dimethylethylphosphine
Section 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title compound 2501-94-2 100% no data no data
Section 3: Hazards Identification
Material has an intensely pungent odor. Toxic by inhalation, in contact with skin and if swallowed. Inhalation of
Emergency Overview:
vapors may lead to headache and dizziness. Irritating to skin, eyes and respiratory tract.
Primary Routes of Exposure: Ingestion, skin, inhalation
Eye Contact: Causes mild to severe irritation of the eyes.
Skin Contact: Liquid may burst into flame in air causing thermal burns to skin.
Toxic by inhalation. Inhalation may lead to headaches and dizziness. Irritating to nose and mucous
Inhalation:
membranes.
Ingestion: Toxic if swallowed. May cause vomiting and diarrhea.
Acute Health Affects: Toxic by inhalation, in contact with skin and if swallowed. Irritating to skin, eyes and respiratory tract.
Chronic Health Affects: No information 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
Inhalation:
in 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: pyrophoric
Explosion Limits: no data
Extinguishing Medium: carbon dioxide, dry powder or foam
If this product is involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure
Special Fire Fighting Procedures:
self-contained breathing apparatus and full protective clothing.
Hazardous Combustion and If involved in a fire, this material may emit toxic organic fumes and vapors of phosphorus pentoxide.
Decomposion Products:
Material is pyrophoric. May spontaneously ignite if exposed to air, especially when in contact with organic
Unusual Fire or Explosion Hazards:
matter.
SECTION 6: Accidental Release Measures
Small spills can be mixed with vermiculite or other suitable adsorbents. Spillage in areas not adequately
Spill and Leak Procedures: ventilated will require an evacuation site. Material may spontaneously ignite. Avoid static electricity.
Emergency response teams will require self-contained breathing apparatus.
SECTION 7: Handling and Storage
Handling and Storage: Material must be handled and stored 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.
Ventilation: Handle the material in an efficient fume hood.
If ventilation is not available a respirator should be worn. The use of respirators requires a Respirator
Respirator:
Protection Program to be in compliance with 29 CFR 1910.134.
Ventilation: Handle the material in an efficient fume hood.
Additional Protection: No additional protection required.
SECTION 9: Physical and Chemical Properties
Color and Form: colorless liquid
Molecular Weight: 90.1
Melting Point: no data
Boiling Point: 54C°
Vapor Pressure: no data
Specific Gravity: 0.7
Odor: intensely pungent odor
Solubility in Water: insoluble
SECTION 10: Stability and Reactivity
Stability: air sensitive liquid
Hazardous Polymerization: no hazardous polymerization
Conditions to Avoid: contact with air. Material may spontaneously ignite on exposure to oxygen.
Incompatibility: oxidizing agents and halogens
Decomposition Products: carbon monoxide, carbon dioxide, phosphorus oxides 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): Pyrophoric liquids, Organic, N.O.S.
Hazard Class (CFR): 4.2
Additional Hazard Class (CFR): NA
Packaging Group (CFR): I
UN ID Number (CFR): UN# 2845
Shipping Name (IATA): Forbidden
Hazard Class (IATA): NA
Additional Hazard Class (IATA): NA
Packaging Group (IATA): NA
UN ID Number (IATA): UN# 2845
SECTION 15: Regulatory Information
TSCA: Listed in the TSCA inventory
SARA (Title 313): Title compound not listed
Second Ingredient: none
SECTION 16 - ADDITIONAL INFORMATION
N/A
