Product Identification

Product Name

1,4-Benzodioxan

Synonyms

1,2-(Ethylenedioxy)benzene
Ethylene o-phenylene dioxide
Pyrocatechol ethylene ether

CAS

493-09-4

Formula

C8H8O2

Molecular Weight

136.15

EINECS

207-775-6

RTECS

DF4728000

RTECS Class

Drug

Beilstein/Gmelin

120846

Beilstein Reference

5-19-01-00439

Physical and Chemical Properties

Appearance

Clear, colorless liquid.

Solubility in water

Slightly soluble

Boiling Point

103

Vapor Pressure

0.04 (25 C)

Density

1.1731 g/cm3 (20 C)

Partition Coefficient

1.88

Heat Of Vaporization

50.5 kJ/mol

Heat Of Combustion

-4039 kJ/mol

Refractive Index

1.5485 (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.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.

Skin

Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.

Eyes

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

Handling and Storage

Storage

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

Handling

Wash thoroughly after handling. Wash hands before eating. Use with adequate ventilation. Avoid contact with heat, sparks and flame. Do not get on skin or in eyes. Do not ingest or inhale.

Hazards Identification

Ingestion

Ingestion of large amounts may cause gastrointestinal irritation. The toxicological properties of this substance have not been fully investigated.

Inhalation

May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

EC Safety Phrase

S 23 24/25

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.

Fire Fighting Measures

Flash Point

69

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. To extinguish fire, use water fog, dry chemical, carbon dioxide, or regular 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, using the appropriate protective equipment. Scoop up with a nonsparking tool, then place into a suitable container for disposal.

Stability and Reactivity

Disposal Code

1

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents and acids

Decomposition

Carbon monoxide, carbon dioxide.

Transport Information

HS Code

2932 99 95