Product Identification

Product Name

1,2-Oxathiolane 2,2-dioxide

Synonyms

1,3-Propanesultone
3-Hydroxy-1-propanesulphonic acid sultone

CAS

1120-71-4

Formula

C3H6O3S

Molecular Weight

122.15

EINECS

214-317-9

RTECS

RP5425000

RTECS Class

Tumorigen; Mutagen; Reproductive Effector; Primary Irritant

Beilstein/Gmelin

109782

Beilstein Reference

5-19-01-00005

EC Index Number

016-032-00-3

EC Class

Carcinogenic Category 2; Harmful

Physical and Chemical Properties

Appearance

White crystalline solid or a colorless liquid.

Solubility in water

Very soluble

Melting Point

31

Boiling Point

298

Vapor Pressure

0.0024 (24 C)

Density

1.3996 g/cm3 (35 C)

Partition Coefficient

-.69

Heat Of Vaporization

51.6 kJ/mol

Usage

1,3-Propane sultone is used as chemical intermediate to introduce sulfopropyl group into molecules, & to confer water solubility & anionic character.

Vapor Density

4.2

Refractive Index

1.4585 (20 C)

First Aid Measures

Ingestion

Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.

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 immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Discard contaminated clothing in a manner which limits further exposure.

Eyes

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed.

Handling and Storage

Storage

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Handling

Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Do not ingest or inhale.

Hazards Identification

Inhalation

May cause respiratory tract irritation.

Skin

May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. Causes severe burns.

Eyes

Causes severe eye irritation and possible burns.

Ingestion

Harmful if swallowed. May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns. May cause central nervous system effects.

Hazards

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

EC Risk Phrase

R 45 21/22

EC Safety Phrase

S 53 45

UN (DOT)

2810

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 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

May cause cancer in humans.

Exposure limit(s)

NIOSH REL: Ca See Appendix A

Poison Class

1*

Fire Fighting Measures

Flash Point

133

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dusts at sufficient concentrations can form explosive mixtures with air. Extinguishing media: Use water spray, dry chemical, or carbon dioxide. Do NOT get water inside containers.

Fire Potential

Combustible material: may burn but does not ignite readily.

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Provide ventilation. Do not get water inside containers.

Stability and Reactivity

Stability

Stable under normal shipping and handling conditions. However may react slowly with water forming corrosive acid.

Incompatibilities

Strong oxidizing agents, bases.

Decomposition

Carbon monoxide, oxides of sulfur, carbon dioxide.

Combustion Products

When heated to decomposition propane sultone emits toxic fumes of sox.

Transport Information

UN Number

2810

Hazard Class

6.1

Packing Group

I; II; III