Product Identification

Product Name

2-Chlorobenzene-1-sulfonyl chloride

Synonyms

o-Chlorobenzenesulfonyl chloride

CAS

2905-23-9

Formula

C6H4Cl2O2S

Molecular Weight

211.07

EINECS

220-807-3

RTECS

DB8925500

RTECS Class

Other

Beilstein/Gmelin

974321

Beilstein Reference

4-11-00-00106

Physical and Chemical Properties

Melting Point

28

Boiling Point

88 - 92 (0.1 torr)

Density

1.548 g/cm3 (20 C)

Refractive Index

1.58 (20 C)

First Aid Measures

Ingestion

Seek medical assistance.

Inhalation

Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.

Skin

Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.

Eyes

Immediately flush with running water for at least 20 minutes.

Hazards Identification

Ingestion

See Inhalation.

Inhalation

TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.

Skin

Contact with molten substance may cause severe burns to skin and eyes. See Inhalation.

Eyes

See Inhalation.

Hazards

When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.

EC Risk Phrase

R 34 37

EC Safety Phrase

S 26 36/37/39 45

UN (DOT)

3265

Exposure Controls/Personal Protection

Personal Protection

Wear appropriate protective gloves, clothing and goggles.

Respirators

Wear positive pressure self-contained breathing apparatus (SCBA).

Fire Fighting Measures

Flash Point

140

Fire Fighting

Small Fires: Dry chemical, carbon dioxide or water spray. Large Fires: Dry chemical, carbon dioxide, alcohol-resistant foam or water spray.

Fire Potential

Combustible material: may burn but does not ignite readily.

Accidental Release Measures

Small spills/leaks

ELIMINATE all ignition sources. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.

Transport Information

UN Number

3265

Stability and Reactivity

Combustion Products

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