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NEOPENTYL GLYCOLICSC: 0305
2,2-Dimethyl-1,3-propanediol
2,2-Dimethylpropane-1,3-diol
1,3-Dihydroxy-2,2-dimethylpropane
March 2001
CAS #: 126-30-7
EC Number: 204-781-0

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible.  Finely dispersed particles form explosive mixtures in air.  NO open flames.  Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.  Use water spray, powder.   

   
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough.  Avoid inhalation of dust and mist. Use ventilation, local exhaust or breathing protection.  Fresh air, rest. 
Skin Redness.  Protective gloves.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes Redness. Pain.  Wear safety spectacles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Burning sensation.  Do not eat, drink, or smoke during work.  Rinse mouth. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: P2 filter respirator for harmful particles. Sweep spilled substance into covered containers. Remove gas with fine water spray. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
Separated from oxidants. Dry. 
PACKAGING
 
NEOPENTYL GLYCOL ICSC: 0305
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS-TO-WHITE HYGROSCOPIC CRYSTALS. 

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. 

Chemical dangers
Reacts violently with oxidants. 

Formula: C5H12O2 / (CH3)2C(CH2OH)2
Molecular mass: 104.2
Boiling point: 210°C
Melting point: 127°C
Density: 1.1 g/cm³
Solubility in water, g/100ml at 20°C: 83
Vapour pressure, Pa at 20°C: 30
Relative vapour density (air = 1): 3.6
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.0
Flash point: 107°C
Auto-ignition temperature: 388°C
Explosive limits, vol% in air: 1.1-11.4
Octanol/water partition coefficient as log Pow: -0.84  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. 

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

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered. 

Effects of long-term or repeated exposure
 


OCCUPATIONAL EXPOSURE LIMITS
 

ENVIRONMENT
 

NOTES
Health effects of exposure to the substance have not been investigated adequately. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations
       Neopentyl glycol  (SIDS)