Product Identification

Product Name

Benzeneacetic acid

Synonyms

2-Phenylacetic acid
alpha-Toluic acid
Benzacetic acid
Benzenacetic acid
Phenylethanoic acid

CAS

103-82-2

Formula

C8H8O2

Molecular Weight

136.15

EINECS

203-148-6

RTECS

AJ2430000

RTECS Class

Reproductive Effector; Primary Irritant

Merck

12,7422

Beilstein/Gmelin

1099647

Beilstein Reference

4-09-00-01614

EC Class

irritant

Physical and Chemical Properties

Appearance

Shiny, white plate crystals, floral odor.

Solubility in water

Very soluble

Melting Point

74 - 77

Boiling Point

265

Vapor Pressure

0.0046 (25 C)

Density

1.081 g/cm3

pKa/pKb

4.30 (pKa)

Partition Coefficient

1.41

Heat Of Vaporization

53.2 kJ/mol

Heat Of Combustion

-3897 kJ/mol

Usage

Used in manufacture of penicillin g, fungicide, plant hormones, flavoring, lab reagent.

Refractive Index

1.50246 (79.8 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. 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

Immediately 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. Keep away from strong bases.

Handling

Wash thoroughly after handling. Minimize dust generation and accumulation. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Avoid ingestion and inhalation.

Hazards Identification

Ingestion

May cause irritation of the digestive tract.

Inhalation

May cause respiratory tract irritation.

Skin

Causes skin burns.

Eyes

Causes eye burns.

Hazards

Contact with metals may evolve flammable hydrogen gas.

EC Risk Phrase

R 36/37/38

EC Safety Phrase

S 26 36

UN (DOT)

1805

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

156

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. Can burn in a fire, releasing toxic vapors. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Fire Potential

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Accidental Release Measures

Small spills/leaks

Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Disposal Code

4

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, strong bases.

Decomposition

Carbon monoxide, carbon dioxide.

Combustion Products

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

Transport Information

UN Number

1805

Hazard Class

8

Packing Group

III

HS Code

2916 34 00