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BUTYLENE OXIDE (STABILIZED)ICSC: 0636
1,2-Epoxybutane
Ethyloxirane
1,2-Butene oxide
April 2017
CAS #: 106-88-7
UN #: 3022
EC Number: 203-438-2

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Highly flammable.  Vapour/air mixtures are explosive. Risk of fire and explosion on contact with oxidizing agents, acids or metal chlorides.  NO open flames, NO sparks and NO smoking.  Closed system, ventilation, explosion-proof electrical equipment and lighting.  Use foam, powder, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

 AVOID ALL CONTACT!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough. Sore throat. Laboured breathing. Headache. Drowsiness.  Use closed system or ventilation.  Fresh air, rest. Artificial respiration may be needed. Refer immediately for medical attention. 
Skin Redness.  Protective gloves. Protective clothing.  First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Refer for medical attention . 
Eyes Redness. Pain.  Wear safety goggles or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. See Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Refer immediately for medical attention. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Evacuate danger area! Remove all ignition sources. Personal protection: self-contained breathing apparatus. Do NOT let this chemical enter the environment. Do NOT wash away into sewer. 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

flam;flameexcl mark;warncancer;health haz
DANGER
Highly flammable liquid and vapour
Harmful if swallowed, in contact with skin or if inhaled
Causes skin and eye irritation
Suspected of causing cancer
May cause respiratory irritation
Harmful to aquatic life 

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

STORAGE
Fireproof. Separated from incompatible materials. See Chemical Dangers. Cool. Store only if stabilized. Store in an area without drain or sewer access. 
PACKAGING
Airtight. 
BUTYLENE OXIDE (STABILIZED) ICSC: 0636
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. The vapour mixes well with air, explosive mixtures are easily formed. As a result of flow, agitation, etc., electrostatic charges can be generated. Vapours are uninhibited and may polymerize, causing blockage of vents. 

Chemical dangers
The substance may polymerize on contact with acids, bases, tin, aluminium and iron chlorides. This generates fire or explosion hazard. Reacts with strong oxidants. This generates fire hazard. 

Formula: C4H8O
Molecular mass: 72.1
Boiling point: 63.3°C
Melting point: -150°C
Density: 0.83 g/cm³
Solubility in water, g/100ml at 20°C: 5.9 (moderate)
Vapour pressure, kPa at 20°C: 18.8
Relative vapour density (air = 1): 2.2
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.3
Flash point: -22°C c.c.
Auto-ignition temperature: 370°C
Explosive limits, vol% in air: 1.7-19
Octanol/water partition coefficient as log Pow: 0.68  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes, respiratory tract and skin. Exposure at high levels could cause lowering of consciousness. 

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
This substance is possibly carcinogenic to humans. 


OCCUPATIONAL EXPOSURE LIMITS
MAK: skin absorption (H); carcinogen category: 2 

ENVIRONMENT
The substance is harmful to aquatic organisms. 

NOTES
Depending on the degree of exposure, periodic medical examination is suggested.
An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert.
Do NOT take working clothes home. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: F, Xn; R: 11-20/21/22-36/37/38-40-52/53; S: (2)-9-16-29-36/37-61 

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    See Also:
       Toxicological Abbreviations