Product Identification

Product Name

2,3-Dichlorothiophene

Synonyms

Thiophene, 2,3-dichloro-

CAS

17249-79-5

Formula

C4H2Cl2S

Molecular Weight

153.03

Merck

 

Beilstein/Gmelin

1760

Beilstein Reference

5-17-01-00304

Physical and Chemical Properties

Appearance

Clear slightly purple liquid

Solubility in water

<0.2 g/L

Melting Point

-26.2

Boiling Point

169 - 170

Density

1.4605 g/cm3 (20 C)

Refractive Index

1.5728 (20 C)

First Aid Measures

Ingestion

Do NOT induce vomiting. Allow the victim to rinse his mouth and then to drink 2-4 cupfuls of water, and seek medical advice.

Inhalation

Remove from exposure to fresh air immediately.

Skin

Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower lids.

Handling and Storage

Storage

Store in a cool, dry place. Keep container closed when not in use. Refrigerator (approx 4 C).

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Fire Fighting Measures

Flash Point

78

Fire Fighting

Wear approved SCBA in full pressure-demand and full protective gear. Extinguish fire using water, dry chemical, chemical foam, or alcohol-resistant foam.

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, while using/wearing the proper protective equipment.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures.

Decomposition

Hydrogen chloride, carbon monoxide, oxides of sulfur, irritating and toxic fumes and gases, carbon dioxide, hydrogen sulfide.

Transport Information

UN Number

2810

Exposure Controls/Personal Protection

Exposure Effects

Irritating to eyes, respiratory system and skin. The toxicological properties of this material have not been investigated. Use appropriate procedures to prevent opportunities for direct contact with the skin or eyes and to prevent inhalation.

Hazards Identification

EC Risk Phrase

R 20/21/22

EC Safety Phrase

S 23 36/37

UN (DOT)

2810