Product Identification

Product Name

Mesitylenecarboxylic acid

Synonyms

2,4,6-Trimethylbenzoic acid
b-Isodurylic acid
Mesitylenecarboxylic acid

CAS

480-63-7

Formula

C10H12O2

Molecular Weight

164.21

EINECS

207-553-9

RTECS

DI0887010

RTECS Class

Drug

Beilstein/Gmelin

1866187

Beilstein Reference

4-09-00-01854

Physical and Chemical Properties

Appearance

White solid.

Solubility in water

Soluble

Melting Point

151 - 154

Boiling Point

298

Vapor Pressure

5 (0 C)

pKa/pKb

3.85 (pKa)

Partition Coefficient

3.05

First Aid Measures

Ingestion

Get medical aid. Wash mouth out with water.

Inhalation

Remove from exposure to fresh air immediately. 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

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. Do not store in direct sunlight. Store in a tightly closed container. Keep under a nitrogen blanket. Flammables-area.

Handling

Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.

Hazards Identification

Ingestion

Causes gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated.

Inhalation

May cause respiratory tract irritation.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

EC Safety Phrase

S 22 24/25

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear chemical goggles. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear a chemical apron.

Respirators

A NIOSH/MSHA approved air purifying dust or mist respirator or European Standard EN 149. 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

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. Containers may explode in the heat of a fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Do NOT use dry chemical. In case of fire use water spray, dry chemical, carbon dioxide, or chemical 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. Vacuum or sweep up material and place into a suitable disposal container. Remove all sources of ignition.

Stability and Reactivity

Disposal Code

4

Incompatibilities

Oxidizing agents, strong acids, moist air or water.

Stability

Stable under normal shipping and handling conditions. Stable under normal temperatures and pressures.

Decomposition

Carbon monoxide, carbon dioxide, oxides of boron.

Transport Information

HS Code

2916 39 00