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Chemical Datasheet

TRIBUTYL PHOSPHATE

Chemical Identifiers

CAS Number UN/NA Number DOT Hazard Label USCG CHRIS Code
  • 126-73-8
none data unavailable
  • TBP
NIOSH Pocket Guide International Chem Safety Card
Tributyl phosphate
  • TRIBUTYL PHOSPHATE
NFPA 704
Diamond Hazard Value Description
1
3 0
Blue Health 3 Can cause serious or permanent injury.
Red Flammability 1 Must be preheated before ignition can occur.
Yellow Instability 0 Normally stable, even under fire conditions.
White Special
(NFPA, 2010)
General Description
Odorless colorless to yellow liquid. Toxic by ingestion and inhalation.

Hazards

Reactivity Alerts
none
Air & Water Reactions
Water insoluble. Reacts slowly with water under basic conditions.
Fire Hazard
Special Hazards of Combustion Products: Toxic fumes of POx. (USCG, 1999)
Health Hazard
May cause stimulation of the central nervous system. (USCG, 1999)
Reactivity Profile
TRIBUTYL PHOSPHATE is incompatible with strong oxidizing agents and strong bases. Attacks some forms of plastics and rubber (NTP, 1992).
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents

No information available.

Response Recommendations

Isolation and Evacuation
No information available.
Firefighting
Fire Extinguishing Agents: CO2, dry chemical, fog, mist (USCG, 1999)
Non-Fire Response
Neutralizing Agents for Acids and Caustics: Dry lime or soda ash (USCG, 1999)
Protective Clothing
Excerpt from NIOSH Pocket Guide for Tributyl phosphate:

Skin: PREVENT SKIN CONTACT - Wear appropriate personal protective clothing to prevent skin contact.

Eyes: PREVENT EYE CONTACT - Wear appropriate eye protection to prevent eye contact.

Wash skin: WHEN CONTAMINATED - The worker should immediately wash the skin when it becomes contaminated.

Remove: WHEN WET OR CONTAMINATED - Work clothing that becomes wet or significantly contaminated should be removed and replaced.

Change: No recommendation is made specifying the need for the worker to change clothing after the workshift. (NIOSH, 2024)
DuPont Tychem® Suit Fabrics
No information available.
First Aid
EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. IMMEDIATELY call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. IMMEDIATELY transport the victim to a hospital for treatment after washing the affected areas.

INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.

INGESTION: DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, administer a slurry of activated charcoal in water and simultaneously call a hospital or poison control center. IMMEDIATELY transport the victim to a hospital. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)

Physical Properties

Chemical Formula:
  • C12H27O4P
Flash Point: 295°F (NTP, 1992)
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: 770°F (USCG, 1999)
Melting Point: less than -112°F (NTP, 1992)
Vapor Pressure: 13.7 mmHg at 68°F (NTP, 1992)
Vapor Density (Relative to Air): 9.2 (NTP, 1992) - Heavier than air; will sink
Specific Gravity: 0.982 at 68°F (USCG, 1999) - Less dense than water; will float
Boiling Point: 552°F at 760 mmHg (NTP, 1992)
Molecular Weight: 266.36 (NTP, 1992)
Water Solubility: less than 1 mg/mL at 68.9°F (NTP, 1992)
Ionization Energy/Potential: data unavailable
IDLH: 30 ppm (NIOSH, 2024)

AEGLs (Acute Exposure Guideline Levels)

No AEGL information available.

ERPGs (Emergency Response Planning Guidelines)

No ERPG information available.

PACs (Protective Action Criteria)

Chemical PAC-1 PAC-2 PAC-3
Tributyl phosphate (126-73-8) 1.4 ppm 21 ppm 125 ppm
(DOE, 2024)

Regulatory Information

EPA Consolidated List of Lists

No regulatory information available.

CISA Chemical Facility Anti-Terrorism Standards (CFATS)

No regulatory information available.

OSHA Process Safety Management (PSM) Standard List

No regulatory information available.

Alternate Chemical Names