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TRIETHYLPHOSPHATEICSC: 1730
Ethyl phosphate
Phosphoric acid, triethyl ester
Triethoxyphosphine oxide
TEP
April 2009
CAS #: 78-40-0
UN #: 3278
EC Number: 201-114-5

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

   
  SYMPTOMS PREVENTION FIRST AID
Inhalation See Ingestion.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. 
Skin   Protective gloves.  Rinse skin with plenty of water or shower. 
Eyes Redness.  Wear safety goggles.  Rinse with plenty of water (remove contact lenses if easily possible). 
Ingestion Dizziness. Drowsiness. Weakness. Unconsciousness.  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. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Wash away remainder with plenty of water. 

According to UN GHS Criteria

excl mark;warn
WARNING
Harmful if swallowed
May cause drowsiness or dizziness 

Transportation
UN Classification
UN Hazard Class: 6.1; UN Pack Group: III 

STORAGE
Separated from strong oxidants and strong bases. Well closed. Ventilation along the floor. 
PACKAGING
 
TRIETHYLPHOSPHATE ICSC: 1730
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
No data. 

Chemical dangers
Decomposes on burning. This produces toxic fumes including phosphorus oxides. Reacts violently with strong bases and strong oxidants. This produces heat. 

Formula: C6H15O4P / (C2H5)3PO4
Molecular mass: 182.2
Boiling point: 215°C
Melting point: -57°C
Relative density (water = 1): 1.07
Solubility in water: miscible
Vapour pressure, Pa at 20°C: 20
Relative vapour density (air = 1): 6.3
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Flash point: 116°C o.c.
Auto-ignition temperature: 452°C
Octanol/water partition coefficient as log Pow: 0.8  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by ingestion. 

Effects of short-term exposure
The substance is mildly irritating to the eyes. The substance may cause effects on the central nervous system. 

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. 

Effects of long-term or repeated exposure
 


OCCUPATIONAL EXPOSURE LIMITS
 

ENVIRONMENT
 

NOTES
 

ADDITIONAL INFORMATION
  EC Classification
Symbol: Xn; R: 22; S: (2)-25 

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    See Also:
       Toxicological Abbreviations
       Triethylphosphate  (SIDS)