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2,2,4-TRIMETHYLPENTANEICSC: 0496
October 1999
CAS #: 540-84-1Isobutyltrimethylmethane
Isooctane
UN #: 1262
EINECS #: 208-759-1

  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, AFFF, foam, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position. 

   
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Confusion. Dizziness. Headache. Nausea. Vomiting.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Artificial respiration may be needed. Refer for medical attention. 
Skin Dry skin. Redness. Pain.  Protective gloves.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes Redness.  Wear safety goggles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Further see Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Evacuate danger area! Personal protection: self-contained breathing apparatus. Remove all ignition sources. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

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

STORAGE
Fireproof. Separated from strong oxidants. Cool. Keep in a well-ventilated room. 
PACKAGING
 
2,2,4-TRIMETHYLPENTANE ICSC: 0496
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
Heating may cause violent combustion or explosion. Reacts with strong oxidants. 

Formula: CH3C(CH3)2CH2CH(CH3)2 / C8H18
Molecular mass: 114.3
Boiling point: 99°C
Melting point: -107°C
Relative density (water = 1): 0.69
Solubility in water: none
Vapour pressure, kPa at 20°C: 5.1
Relative vapour density (air = 1): 3.9
Flash point: 4.5°C o.c.
Auto-ignition temperature: 417°C
Explosive limits, vol% in air: 1.1-6.0 


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the kidneys, liver and nervous system. If this liquid is swallowed, aspiration into the lungs may result in chemical pneumonitis. 

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. 

Effects of long-term or repeated exposure
The substance defats the skin, which may cause dryness or cracking. 


Occupational exposure limits
MAK: 470 mg/m3, 100 ppm; peak limitation category: II(2); pregnancy risk group: D 

ENVIRONMENT
 

NOTES
 

ADDITIONAL INFORMATION
  EC Classification
Symbol: F, Xn, N; R: 11-38-50/53-65-67; S: (2)-9-16-29-33-60-61-62; Note: C 

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       Toxicological Abbreviations