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3-METHYLPENTANEICSC: 1263
March 1995
CAS #: 96-14-0Diethylmethylmethane
UN #: 1208 (hexanes)
EINECS #: 202-481-4

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Highly flammable.  Vapour/air mixtures are explosive.  NO open flames, NO sparks and NO smoking.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding). Do NOT use compressed air for filling, discharging, or handling.  Use powder, foam, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

   
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation   Use ventilation, local exhaust or breathing protection.  Fresh air, rest. 
Skin   Protective gloves.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes   Wear safety spectacles.  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. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Ventilation. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 3; UN Pack Group: II 

STORAGE
Fireproof. Separated from strong oxidants. 
PACKAGING
 
3-METHYLPENTANE ICSC: 1263
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
The vapour is heavier than air and may travel along the ground; distant ignition possible. As a result of flow, agitation, etc., electrostatic charges can be generated. 

Chemical dangers
Reacts violently with oxidants. This generates fire and explosion hazard. Attacks plastics. 

Formula: C6H14 / CH3CH2CH(CH3)CH2CH3
Molecular mass: 86.2
Boiling point: 63.3°C
Melting point: -118°C
Relative density (water = 1): 0.66
Solubility in water: none
Vapour pressure, kPa at 20°C: 20.5
Relative vapour density (air = 1): 2.97
Flash point: <-20°C
Auto-ignition temperature: 278°C
Explosive limits, vol% in air: 1.2-7.0 


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its vapour. 

Effects of short-term exposure
 

Inhalation risk
A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C. 

Effects of long-term or repeated exposure
 


Occupational exposure limits
TLV: 500 ppm as TWA; 1000 ppm as STEL.
MAK: 1800 mg/m3, 500 ppm; peak limitation category: II(2); pregnancy risk group: D 

ENVIRONMENT
 

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

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations