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ETHYL TERTIARY BUTYL ETHERICSC: 1706
ETBE
2-Ethoxy-2-methylpropane
Ethyl 1,1-dimethylethyl ether
Ethyl tert-butyl ether
November 2009
CAS #: 637-92-3
UN #: 1179
EC Number: 211-309-7

  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. Do NOT use compressed air for filling, discharging, or handling.  Use powder, alcohol-resistant foam, water in large amounts, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

 PREVENT GENERATION OF MISTS!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough. Drowsiness. Unconsciousness.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Seek medical attention if you feel unwell. 
Skin Dry skin. Redness.  Protective gloves.  First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. 
Eyes Redness. Pain.  Wear safety spectacles or eye protection in combination with breathing protection.  Rinse with plenty of water (remove contact lenses if easily possible). 
Ingestion Sore throat. Aspiration hazard! Further see Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Refer immediately for medical attention. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Remove all ignition sources. Consult an expert! Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. 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

flam;flameexcl mark;warncancer;health haz
DANGER
Highly flammable liquid and vapour
Causes eye irritation
Causes mild skin irritation
May cause drowsiness or dizziness
May be fatal if swallowed and enters airways 

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

STORAGE
Fireproof. Separated from oxidants. Cool. Well closed. Keep in the dark. Store in an area without drain or sewer access. 
PACKAGING
 
ETHYL TERTIARY BUTYL ETHER ICSC: 1706
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
Decomposes on heating and on contact with hot surfaces and flames. This produces irritating fumes. The substance can presumably form explosive peroxides under the influence or air and light. 

Formula: C6H14O
Molecular mass: 102.2
Boiling point: 70-73°C
Melting point: -94°C
Relative density (water = 1): 0.75
Solubility in water, g/100ml at 25°C: 1.2 (poor)
Vapour pressure, kPa at 20°C: 12.8
Relative vapour density (air = 1): 3.5
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.3
Flash point: -19°C c.c.
Auto-ignition temperature: 375°C
Explosive limits, vol% in air: 1.2-7.7
Octanol/water partition coefficient as log Pow: 1.28
Viscosity: <7 mm²/s at 40°C 


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. If swallowed the substance easily enters the airways and could result in aspiration pneumonitis. The substance may cause effects on the central nervous system. Exposure could cause lowering of consciousness. 

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

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. 


OCCUPATIONAL EXPOSURE LIMITS
TLV: 25 ppm as TWA; A4 (not classifiable as a human carcinogen) 

ENVIRONMENT
 

NOTES
Check for peroxides prior to distillation; eliminate if found. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations