ICSC 0636 - BUTYLENE OXIDE (STABILIZED)

[List of Chemicals] [Risk Notes] [Risk Phrases] [Safety Phrases] [Danger Symbols]

BUTYLENE OXIDE (STABILIZED)

ICSC: 0636
_{April 1997}

1,2-Butene oxide
1,2-Epoxybutane
Ethyloxirane

CAS No: 106-88-7
RTECS No: EK3675000
UN No: 3022
EC No: 603-102-00-9

C₄H₈O
Molecular mass: 72.12

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Highly flammable.	NO open flames, NO sparks, and NO smoking.	Foam, alcohol-resistant foam, powder, carbon dioxide.
EXPLOSION	Vapour/air mixtures are explosive. Risk of fire and explosion on contact with oxidants, acid(s), metal chlorides.	Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding).	In case of fire: keep drums, etc., cool by spraying with water.

EXPOSURE		AVOID ALL CONTACT!
Inhalation	Confusion. Cough. Dizziness. Headache. Laboured breathing. Nausea. Sore throat. Unconsciousness.	Closed system and ventilation.	Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
Skin	Redness.	Protective gloves. Protective clothing.	First rinse with plenty of water, then remove contaminated clothes and rinse again. Refer for medical attention.
Eyes	Redness. Pain.	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 take to a doctor.
Ingestion	Abdominal pain. (See Inhalation).	Do not eat, drink, or smoke during work.	Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Rest. Refer for medical attention.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Evacuate danger area in case of large spills! Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT wash away into sewer. Personal protection: filter respirator for organic vapours of low boiling compounds.	F Symbol Xn Symbol R: 11-20/21/22-36/37/38-40-52/53 S: (2-)9-16-29-36/37-61 UN Hazard Class: 3 UN Pack Group: II	Airtight.

EMERGENCY RESPONSE	SAFE STORAGE
Transport Emergency Card: TEC (R)-30GF1-I+II-9 NFPA Code: H2; F3; R2	Fireproof. Separated from incompatible materials. See Chemical Dangers. Cool. Store only if stabilized.

IMPORTANT DATA

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.

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

Occupational exposure limits
TLV not established.
MAK: skin absorption (H); Carcinogen category: 2; (DFG 2005).

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

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

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

Effects of long-term or repeated exposure
The substance may have effects on the nervous system. This substance is possibly carcinogenic to humans.

PHYSICAL PROPERTIES

ENVIRONMENTAL DATA

Boiling point: 63.3°C
Melting point: -130°C
Relative density (water = 1): 0.83
Solubility in water, g/100 ml at 25°C: 9.5
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
Auto-ignition temperature: 439°C
Explosive limits, vol% in air: 3.9-20.6
Octanol/water partition coefficient as log Pow: 0.416

NOTES

Depending on the degree of exposure, periodic medical examination is suggested.
Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken.
An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert.
Vapours are uninhibited and may polymerize, blocking valves and vents.
Card has been partly updated in October 2005. See sections Occupational Exposure Limits, EU classification, Emergency Response.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004

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