Product Identification

Product Name

4-Toluene sulfochloride

Synonyms

4-Methylbenzenesulfonyl chloride
p-Tolylsulfonyl chloride
p-Tosyl chloride

CAS

98-59-9

Formula

C7H7ClO2S

Molecular Weight

190.65

EINECS

202-684-8

Merck

12,9672

Beilstein/Gmelin

607898

Beilstein Reference

4-11-00-00375

EC Class

corrosive

Physical and Chemical Properties

Appearance

A white to gray powdered solid with a distinctive odor.

Solubility in water

Insoluble

Melting Point

67

Boiling Point

265

Vapor Pressure

0.015 (25 C)

Density

1.49 g/cm3

Partition Coefficient

2.45

Heat Of Vaporization

48.3 kJ/mol

Usage

Organic synthesis.

Vapor Density

1.33

First Aid Measures

Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.

Inhalation

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

Skin

Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage

Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from water. Corrosives area. Do not store in metal containers.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Do not get in eyes, on skin, or on clothing. Do not ingest or inhale.

Hazards Identification

Ingestion

Causes gastrointestinal tract burns.

Inhalation

May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema. Causes chemical burns to the respiratory tract.

Skin

Contact with skin causes irritation and possible burns, especially if the skin is wet or moist. Vesicant.

Eyes

May cause eye injury. Lachrymator. Causes eye irritation and burns.

Hazards

Contact with metals may evolve flammable hydrogen gas.

EC Risk Phrase

R 34 37

EC Safety Phrase

S 26 28 36/37/39 45

UN (DOT)

1759

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.

Respirators

Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.

Poison Class

2

Fire Fighting Measures

Flash Point

114

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Do NOT use water directly on fire. Use carbon dioxide or dry chemical.

Fire Potential

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.

Stability and Reactivity

Disposal Code

11

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizers. Water hydrolyzes material liberating acidic gas which in contact with metal surfaces can generate flammable and/or explosive hydrogen gas.

Decomposition

Hydrogen chloride, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, sulfur oxides (SOx), including sulfur oxide and sulfur dioxide.

Combustion Products

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

Transport Information

UN Number

1759

Hazard Class

8

Packing Group

I; II; III

HS Code

2904 90 20