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TRIBUTYL PHOSPHATEICSC: 0584
October 2005
CAS #: 126-73-8Tri-n-butyl phosphate
Phosphoric acid, tributyl ester
EINECS #: 204-800-2

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire.    NO open flames.    Use water spray, foam, powder, carbon dioxide.   

 PREVENT GENERATION OF MISTS!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Headache. Nausea. Sore throat.  Use local exhaust or breathing protection.  Fresh air, rest. 
Skin Redness. Pain.  Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. 
Eyes Redness. Pain.  Wear safety goggles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion   Do not eat, drink, or smoke during work.  Rinse mouth. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Collect leaking liquid in sealable non-plastic containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
Store in an area without drain or sewer access. Separated from bases and strong oxidants. 
PACKAGING
 
TRIBUTYL PHOSPHATE ICSC: 0584
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS ODOURLESS VISCOUS LIQUID. 

Physical dangers
 

Chemical dangers
Decomposes on burning. This produces toxic fumes including phosphorus oxides. Reacts with warm water. This produces corrosive phosphoric acid and butanol. Attacks some forms of plastic, rubber and coatings. Reacts with bases and strong oxidants. 

Formula: C12H27O4P / (C4H9)3PO4
Molecular mass: 266.3
Decomposes at 289°C
Melting point: <-80°C
Relative density (water = 1): 0.98
Solubility in water: poor
Vapour pressure, Pa at 25°C: 0.15
Relative vapour density (air = 1): 9.2
Flash point: 146°C o.c.
Auto-ignition temperature: >482°C
Octanol/water partition coefficient as log Pow: 4.0  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its vapour, through the skin and by ingestion. 

Effects of short-term exposure
The substance is severely irritating to the eyes, skin and respiratory tract. 

Inhalation risk
A harmful contamination of the air will not or will only very slowly be reached on evaporation of this substance at 20°C; on spraying or dispersing, however, much faster. 

Effects of long-term or repeated exposure
Ingestion may cause effects on the bladder. This may result in tissue lesions. 


Occupational exposure limits
TLV: 5 mg/m3, ppm, as TWA; A3 (confirmed animal carcinogen with unknown relevance to humans); BEI issued.
MAK: 11 mg/m3, 1 ppm; peak limitation category: II(2); skin absorption (H); carcinogen category: 4; pregnancy risk group: C 

ENVIRONMENT
The substance is toxic to aquatic organisms. 

NOTES
 

ADDITIONAL INFORMATION
  EC Classification
Symbol: Xn; R: 22-38-40; S: (2)-36/37-46 

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    See Also:
       Toxicological Abbreviations
       Tributyl phosphate (EHC 112, 1991)
       Tributyl phosphate (SIDS)