Product Identification

Product Name

3,4-Dimethoxy-benzaldehyde

Synonyms

Veratraldehyde

CAS

120-14-9

Formula

C9H10O3

Molecular Weight

166.18

EINECS

204-373-2

RTECS

YX5088000

RTECS Class

Primary Irritant

Merck

12,10084

Beilstein/Gmelin

473899

Beilstein Reference

4-08-00-01765

EC Class

harmful, irritant

Physical and Chemical Properties

Appearance

Needles or chunky light peach powder. Has an odor of vanilla beans.

Solubility in water

Slightly soluble

Melting Point

40 - 43

Boiling Point

281

Vapor Pressure

0.004 (25 C)

Partition Coefficient

1.61

Heat Of Vaporization

49.0 kJ/mol

Heat Of Combustion

-4555 kJ/mol

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. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

Skin

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

Eyes

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.

Handling

Wash thoroughly after handling. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Ingestion

Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed.

Inhalation

Inhalation of dust may cause respiratory tract irritation.

Skin

Causes skin irritation.

Eyes

May cause eye irritation.

Hazards

Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion and poison hazard indoors, outdoors or in sewers.

EC Risk Phrase

R 22 36/37/38

EC Safety Phrase

S 26 36/37/39

UN (DOT)

1988

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

110

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire, use water fog, dry chemical, carbon dioxide, or regular foam.

Fire Potential

This compound is probably combustible.

Accidental Release Measures

Small spills/leaks

Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions.

Stability and Reactivity

Disposal Code

3

Incompatibilities

Oxidizing agents, strong bases.

Stability

Stable under normal temperatures and pressures. Solutions are oxidized to veratic acid under the influence of light.

Decomposition

Carbon monoxide, carbon dioxide.

Combustion Products

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

Transport Information

UN Number

1988

Hazard Class

3

Packing Group

I; II; III

HS Code

2912 49 00