Product Identification

Product Name

Thiofuran

Synonyms

Divinylene sulfide
Thiofuran
Thiofurfuran
Thiole
Thiotetrole

CAS

110-02-1

Formula

C4H4S

Molecular Weight

84.14

EINECS

203-729-4

RTECS

XM7350000

RTECS Class

Other

Merck

12,9490

Beilstein/Gmelin

103222

Beilstein Reference

5-17-01-00297

EC Class

highly flammable, harmful, irritant, dangerous for the environment

Physical and Chemical Properties

Appearance

A colorless liquid with an unpleasant odor.

Solubility in water

Insoluble

Melting Point

-38

Boiling Point

84.4

Vapor Pressure

127 (35 C)

Density

1.08844 g/cm3 (0 C)

Partition Coefficient

1.81

Heat Of Vaporization

32.5 kJ/mol

Heat Of Combustion

-2807 kJ/mol

Usage

Organic synthesis, copolymerizes with maleic anhydride.

Saturation Concentration

276 g/m3 (20 C)

Refractive Index

1.52684 (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.

Skin

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.

Handling and Storage

Storage

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

Handling

Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Use only in a chemical fume hood.

Hazards Identification

Inhalation

Harmful if inhaled. May cause respiratory tract irritation.

Skin

May cause skin irritation. Harmful if absorbed through the skin.

Eyes

Causes eye irritation. Lachrymator.

Ingestion

Harmful if swallowed. May cause irritation of the digestive tract. May cause nausea and vomiting.

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 hazard indoors, outdoors or in sewers. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

EC Risk Phrase

R 11 20/21/22

EC Safety Phrase

S 16 26 36/37/39

UN (DOT)

2414

Exposure Controls/Personal Protection

Personal Protection

Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

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.

Exposure Effects

The toxological properties of this substance have not been fully investigated.

Poison Class

3

Fire Fighting Measures

Flash Point

-9

Autoignition

395

Fire Fighting

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

Upper exp. limit

12.5

Lower exp. limit

1.5

Fire Potential

HIGHLY FLAMMABLE.

Accidental Release Measures

Small spills/leaks

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

Stability and Reactivity

Disposal Code

6

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

Carbon monoxide, oxides of sulfur, carbon dioxide, hydrogen sulfide.

Combustion Products

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

Transport Information

UN Number

2414

Hazard Class

3

Packing Group

II

HS Code

2934 99 90