Product Identification

Product Name

1,2-Dimethoxybenzene

Synonyms

o-Dimethoxybenzene
Pyrocatechol dimethyl ether
Synthol
Veratrole

CAS

91-16-7

Formula

C8H10O2

Molecular Weight

138.16999999999999

EINECS

202-045-3

RTECS

CZ6475000

RTECS Class

Other

Merck

12,10089

Beilstein/Gmelin

1364621

Beilstein Reference

4-06-00-05564

EC Class

harmful

Physical and Chemical Properties

Appearance

Solid.

Solubility in water

Insoluble

Melting Point

19 - 21

Boiling Point

207

Vapor Pressure

0.34 (25 C)

Density

1.1004 g/cm3 (4 C)

Partition Coefficient

1.96

Heat Of Vaporization

42.4 kJ/mol

Heat Of Combustion

-4287 kJ/mol

Usage

A building block for the organic synthesis of other aromatic compounds.

Refractive Index

1.5827 (21 C)

First Aid Measures

Ingestion

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. Get medical aid if cough or other symptoms appear.

Skin

Get medical aid if irritation develops or persists. Flush skin with plenty of soap and water.

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

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

Handling

Wash thoroughly after handling. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.

Hazards Identification

Ingestion

May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated. May be harmful if swallowed.

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 Risk Phrase

R 22

EC Safety Phrase

S 36/37

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.

Poison Class

4

Fire Fighting Measures

Flash Point

87

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. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

Fire Potential

Combustible solid.

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container.

Stability and Reactivity

Disposal Code

1

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents - strong acids.

Decomposition

Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Transport Information

HS Code

2909 30 90