IPCS INCHEM Home
PENTAERYTHRITOL
ICSC: 1383
Peer-Review Status: 25.11.2009 Validated
2,2-bis(Hydroxymethyl)-1,3-propanediol
Tetramethylolmethane
THME
PETP 
CAS #: 115-77-5 RTECS #: RZ2490000
EINECS #: 204-104-9
    Formula: C5H12O14 / C(CH2OH)4
Molecular mass: 136.2

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible.  NO open flames.  Use water, powder, carbon dioxide. 
EXPLOSION Finely dispersed particles form explosive mixtures in air.  Prevent deposition of dust. Closed system, dust explosion-proof electrical equipment and lighting.  In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE   PREVENT DISPERSION OF DUST!   
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
PACKAGING & 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.   
EC Classification
 
UN Classification
 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
  Separated from strong oxidants and strong acids. 

IMPORTANT DATA
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. 

Occupational exposure limits
TLV: 10mg/m³ as TWA; (ACGIH 2009).
MAK (not established):. 

Routes of exposure
 

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

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

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
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  
 

NOTES
 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations
       Pentaerythritol  (SIDS)