Product Identification

Product Name

2,3-Dimethylthiophene

CAS

632-16-6

Formula

C6H8S

Molecular Weight

112.19

EINECS

211-170-2

Physical and Chemical Properties

Appearance

Colorless liquid.

Solubility in water

Insoluble

Melting Point

-49

Boiling Point

141.6

Vapor Pressure

6.4 torr (25 C)

Density

1.0021 g/cm3 (20 C)

Partition Coefficient

2.78

Refractive Index

1.5192 (20^oC)

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. 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 eyelids. Get medical aid.

Handling and Storage

Storage

Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Flammables-area.

Hazards Identification

Ingestion

Harmful if swallowed. May cause irritation of the digestive tract.

Inhalation

Harmful if inhaled. May cause respiratory tract irritation.

Skin

May cause irritation. Harmful if absorbed through the skin.

Eyes

May cause irritation.

EC Risk Phrase

R: 11 20/21/22

EC Safety Phrase

S: 9 16 33 36/37

Exposure Controls/Personal Protection

Personal Protection

Chemical protective goggles, chemically resistive gloves, protective work clothing.

Respirators

Follow the OSHA respirator regulations found in 29 CFR 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

1

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use dry chemical or foam.

Fire Potential

Will burn if involved in a fire. Flammable liquid and vapor.

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Remove all sources of ignition. Use a spark-proof tool.

Stability and Reactivity

Incompatibilities

Strong oxidizing agents, strong bases.

Decomposition

Carbon monoxide, oxides of sulfur, carbon dioxide.