Product Identification

Product Name

4-Amino-2-chlorobenzoic acid

Synonyms

2-Chloro-p-aminobenzoic acid
4-Amino-2-chlorobenzoic acid
o-Chloro-p-aminobenzoic acid

CAS

2457-76-3

Formula

C7H6ClNO2

Molecular Weight

171.58

EINECS

219-540-5

RTECS

DG1575000

RTECS Class

Mutagen

Beilstein/Gmelin

2803668

Beilstein Reference

4-14-00-01272

EC Class

irritant

Physical and Chemical Properties

Appearance

Slightly brown solid.

Solubility in water

Very soluble

Melting Point

220

Boiling Point

330

pKa/pKb

3.85 (pKa)

Partition Coefficient

1.35

First Aid Measures

Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. 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

Immediately 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 immediately.

Handling and Storage

Storage

Store in a cool, dry place. Store in a tightly closed container.

Handling

Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Ingestion

May cause gastrointestinal irritation with nausea, vomiting and diarrhea.

Inhalation

May cause irritation of the respiratory tract with burning pain in the nose and throat, coughing, wheezing, shortness of breath and pulmonary edema.

Skin

Causes skin irritation.

Eyes

Causes eye irritation.

EC Risk Phrase

R 36/37/38

EC Safety Phrase

S 26 36

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

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. Extinguishing media: Use foam, dry chemical, or carbon dioxide.

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container. Wash area with soap and water. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

Carbon monoxide, oxides of nitrogen, carbon dioxide.

Transport Information

HS Code

2922 49 95