Product Identification

Product Name

1-Chloro-2-butene

Synonyms

(E)-1-Chlorobut-2-ene
Crotyl chloride

CAS

591-97-9

Formula

C4H7Cl

Molecular Weight

90.55

EINECS

209-739-5

RTECS

EM4264000

RTECS Class

Mutagen

Merck

12,2181

Beilstein/Gmelin

605304

Beilstein Reference

2-01-00-00176

Physical and Chemical Properties

Appearance

Clear, light yellow liquid with a stinging odor.

Solubility in water

14 g/L

Boiling Point

83 - 84

Vapor Pressure

37081 (25 C)

Density

0.9491 g/cm3 (0 C)

Partition Coefficient

1.14

Heat Of Vaporization

31.1 kJ/mol

Refractive Index

1.434 (20 C)

First Aid Measures

Ingestion

Get medical aid. Wash mouth out with water.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

Skin

Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.

Eyes

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower lids. Get medical aid.

Handling and Storage

Storage

Keep away from sources of ignition. Store in a tightly closed container. Store in a dry area. Refrigerator/flammables.

Handling

All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification

Ingestion

Harmful if swallowed.

Inhalation

May cause severe irritation of the upper respiratory tract with pain, burns, and inflammation.

Skin

Causes skin burns.

Eyes

See inhalation.

Hazards

Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion and poison hazard indoors, outdoors or in sewers.

UN (DOT)

1992

Exposure Controls/Personal Protection

Personal Protection

Wear appropriate safety goggles, protective clothing and gloves.

Respirators

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Fire Fighting Measures

Flash Point

-15

Autoignition

510

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use water spray to cool fire-exposed containers. Use foam, dry chemical, or carbon dioxide.

Fire Potential

Flammable Liquid.

Accidental Release Measures

Small spills/leaks

Make no contact with the spilled material. Fully encapsulating, vapor protective clothing should be worn for spills and leaks with no fire. ELIMINATE all ignition sources and ground all equipment. Stop leak if you can do it without risk. A vapor suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean non-sparking tools to collect absorbed material.

Stability and Reactivity

Incompatibilities

Keep away from strong oxidizing agents.

Stability

Stable under normal temperatures and pressures.

Combustion Products

Fire will produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

1992

Hazard Class

3

Packing Group

I; II; III