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PENTAERYTHRITOLICSC: 1383
2,2-bis(Hydroxymethyl)-1,3-propanediol
Tetramethylolmethane
THME
PETP
November 2009
CAS #: 115-77-5
EC Number: 204-104-9

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible.  Finely dispersed particles form explosive mixtures in air.  NO open flames.  Prevent deposition of dust. Closed system, dust explosion-proof electrical equipment and lighting.  Use water, powder, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation   Avoid inhalation of dust. Use local exhaust and breathing protection.  Fresh air, rest. 
Skin   Protective gloves.  Rinse and then wash skin with water and soap. 
Eyes Redness.  Wear safety goggles or eye protection in combination with breathing protection if powder.  Rinse with plenty of water (remove contact lenses if easily possible). 
Ingestion   Do not eat, drink, or smoke during work.  Rinse mouth. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Remove airborne particles with fine water spray. 

According to UN GHS Criteria

No hazard classification according to GHS criteria 

Transportation
UN Classification
 

STORAGE
Separated from strong oxidants and strong acids. 
PACKAGING
 
PENTAERYTHRITOL ICSC: 1383
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS-TO-WHITE ODOURLESS CRYSTALLINE POWDER. 

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc. 

Chemical dangers
Decomposes on heating. This produces irritating fumes. Reacts violently with strong oxidants and strong acids. This generates explosion hazard. 

Formula: C5H12O14 / C(CH2OH)4
Molecular mass: 136.2
Boiling point at 4kPa: 276°C
Melting point: 260°C
Relative density (water = 1): 1.4
Solubility in water, g/100ml at 25°C: 2.5
Vapour pressure, Pa at 20°C: 0.013
Relative vapour density (air = 1): 4.7
Flash point: 240°C o.c.
Auto-ignition temperature: 390-490°C
Octanol/water partition coefficient as log Pow: -1.69  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
 

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

Inhalation risk
A nuisance-causing concentration of airborne particles can be reached quickly when dispersed, especially if powdered. 

Effects of long-term or repeated exposure
 


OCCUPATIONAL EXPOSURE LIMITS
TLV: 10 mg/m3, as TWA 

ENVIRONMENT
 

NOTES
 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations
       Pentaerythritol  (SIDS)