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1,2-EPOXYBUTANE structure
Chemical Name:
1,2-epoxy;NCI-C55527;Epoxybutane;BETAEPOXIDE;Butene oxide;ethyl-oxiran;ETHYLOXIRANE;ETHYLOXITANE;2-Ethyloxirane;Oxirane,ethyl-
Molecular Formula:
Formula Weight:
MOL File:

1,2-EPOXYBUTANE Properties

Melting point:
Boiling point:
63 °C(lit.)
0.829 g/mL at 20 °C(lit.)
vapor density 
2.2 (vs air)
vapor pressure 
140 mm Hg ( 20 °C)
refractive index 
n20/D 1.384
Flash point:
10 °F
storage temp. 
Store below +30°C.
7 (50g/l, H2O, 20℃)
explosive limit
Stable, but prone to polymerization - stabilizer may be added to neat liquid. Highly flammable. Incompatible with strong oxidizing agents, acids, bases, anhydrous metal halides, amino, hydroxyl and carboxyl-containing compounds. Inorganic acids and charcoal may lead to polymerization. Heat, light and moisture sensitive.
CAS DataBase Reference
106-88-7(CAS DataBase Reference)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
  • NFPA
Hazard Codes  F,Xn
Risk Statements  11-20/21/22-36/37/38-40-52/53
Safety Statements  9-16-29-36/37-61-19
RIDADR  UN 3022 3/PG 2
WGK Germany  2
RTECS  EK3675000
Autoignition Temperature 698 °F
HazardClass  3.1
PackingGroup  II
HS Code  29109000
Toxicity LD50 orally in Rabbit: 500 mg/kg LD50 dermal Rabbit 1743 mg/kg
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H312 Harmful in contact with skin Acute toxicity,dermal Category 4 Warning P280,P302+P352, P312, P322, P363,P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H332 Harmful if inhaled Acute toxicity,inhalation Category 4 Warning P261, P271, P304+P340, P312
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
H351 Suspected of causing cancer Carcinogenicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
H361 Suspected of damaging fertility or the unborn child Reproductive toxicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501
H402 Harmful to aquatic life Hazardous to the aquatic environment, acute hazard Category 3
H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood.
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233 Keep container tightly closed.
P240 Ground/bond container and receiving equipment.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P308+P313 IF exposed or concerned: Get medical advice/attention.
P370+P378 In case of fire: Use … for extinction.
P405 Store locked up.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.

NFPA 704

Diamond Hazard Value Description
3 2
HEALTH   3 Short exposure could cause serious temporary or moderate residual injury (e.g. liquid hydrogen, sulfuric acid, calcium hypochlorite, hexafluorosilicic acid)
FIRE  3 Liquids and solids (including finely divided suspended solids) that can be ignited under almost all ambient temperature conditions . Liquids having a flash point below 22.8 °C (73 °F) and having a boiling point at or above 37.8 °C (100 °F) or having a flash point between 22.8 and 37.8 °C (73 and 100 °F). (e.g. gasoline, acetone)
REACT   2 Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water (e.g. white phosphorus, potassium, sodium)

(NFPA, 2010)

1,2-EPOXYBUTANE price More Price(10)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 109975 1,2-Epoxybutane 99% 106-88-7 250ml $49.2 2018-11-13 Buy
Sigma-Aldrich 109975 1,2-Epoxybutane 99% 106-88-7 1l $75.2 2018-11-13 Buy
TCI Chemical B0719 1,2-Butylene Oxide >99.0%(GC) 106-88-7 25mL $16 2018-11-22 Buy
TCI Chemical B0719 1,2-Butylene Oxide >99.0%(GC) 106-88-7 100mL $28 2018-11-22 Buy
Alfa Aesar H36581 (±)-1,2-Epoxybutane, 99% 106-88-7 25g $23 2018-11-13 Buy

1,2-EPOXYBUTANE Chemical Properties,Uses,Production

Chemical Properties

1,2-Butylene oxide is a colorless mobile liquid with an unpleasant smell. This low boiling liquid has but limited water solubility, yet is miscible with most common organic solvents. It undergoes the usual reactions of epoxides with compounds having labile hydrogen atoms. Some of these are acids, amines, ammonia, alcohols, phenols, polyols, thiols, etc. Butylene oxide can be polymerized or copolymerized with other alkylene oxides to yield polyethers. The resulting polymers are less water soluble than the polymers made from ethylene and propylene oxide, of equivalent chain length.

Chemical Properties

Butylene oxide is a watery-white liquid with and ethereal odor.


Intermediate for various polymers, stabilizer for chlorinated solvents.

General Description

A clear colorless volatile liquid with an ethereal odor. Flash point near 0°F. Density about 6.9 lb / gal. Soluble in water. Boiling point near 140°F. Flammable over a wide range of vapor-air concentrations. May polymerize with the evolution of heat and possible rupture of container if contaminated. Vapors irritate eyes, skin and respiratory system. Prolonged contact with skin may cause in delayed burns. Vapors are heavier than air. Used as an intermediate to make various polymers. Chemicals that polymerize are often stabilized by refrigeration.

Air & Water Reactions

Highly flammable. Soluble in water and may decompose upon contact with water.

Reactivity Profile

Epoxides, such as 1,2-EPOXYBUTANE, are highly reactive. They polymerize in the presence of catalysts or when heated. Contact with anhydrous metal halides; amino, hydroxyl and carboxyl functions; inorganic acids and charcoal may cause polymerization. These polymerization reactions can be violent. Compounds in this group react with acids, bases, and oxidizing and reducing agents. They react, possibly violently with water in the presence of acid and other catalysts.


Toxic concentration of vapors occurs at room temperature. Highly flammable, dangerous fire risk. Possible carcinogen.

Health Hazard

Inhalation: intolerable odor and irritation; respiratory injury may occur at higher levels. Ingestion causes irritation of mouth and stomach. Contact with either liquid or vapor may cause burns of eyes. Liquid produces frostbite-type of skin burn if free to evaporate; if confined to skin, burn may cause skin sensitization; not readily absorbed in toxic amounts.

Fire Hazard

Behavior in Fire: Containers may explode in fire. Use water to cool container from safe distance.

Safety Profile

Confirmed carcinogen with experimental carcinogenic data. Moderately toxic by ingestion and skin contact. Mtldly toxic by inhalation. Experimental reproductive effects. Mutation data reported. Dangerous fire hazard when exposed to heat, flame, or powerful oxidizers. To fight fire, use dry chemical, water spray, mist or fog, alcohol foam. When heated to decomposition it emits acrid smoke and fumes.

Potential Exposure

It is used as a stabilizer in chlorinated solvents, and to make other chemicals, such as gasoline additives.

First aid

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit. Medical observation is recommended for 24 to 48 hoursafter breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy


UN3022 1,2-Butylene oxide, stabilized, Hazard Class: 3; Labels: 3—Flammable liquid

Purification Methods

Dry it with CaSO4, and fractionally distil it through a long (126cm) glass helices-packed column. The first fraction contains a water azeotrope. [Beilstein 17 II 17.]


May form explosive mixture with air. Unless inhibited, can form unstable and explosive peroxides. Before entering confined space where this chemical may be present, check to make sure that an explosive concentration does not exist. Polymerization will occur in the presence of acids, strong bases and chlorides of tin, iron and aluminum. Storage tanks and other equipment should be absolutely dry and free from air, ammonia, acetylene, hydrogen sulfide, rust and other contaminants. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Attacks some plastics. May accumulate static electric charges that can result in ignition of its vapors. A regulated, marked area should be established where this chemical is handled, used, or stored in compliance with OSHA Standard 1910.1045.

1,2-EPOXYBUTANE Preparation Products And Raw materials

Raw materials

Preparation Products

1,2-EPOXYBUTANE Suppliers

Global( 102)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Mainchem Co., Ltd.
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Chemwill Asia Co.,Ltd.
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JinYan Chemicals(ShangHai) Co.,Ltd. 13817811078,021-50426030
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1,2-EPOXYBUTANE Spectrum

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