Product Identification

Product Name

o-Nitrobenzoic acid

Synonyms

2-Nitrobenzoic acid
o-Carboxynitrobenzene

CAS

552-16-9

Formula

C7H5NO4

Molecular Weight

167.12

EINECS

209-004-9

RTECS

DH5050000

RTECS Class

Mutagen

Merck

12,6686

Beilstein/Gmelin

1910632

Beilstein Reference

4-09-00-01046

Physical and Chemical Properties

Appearance

Yellowish white crystals with an intensely sweet taste.

Solubility in water

Very soluble

Melting Point

146 - 148

Density

1.575 g/cm3 (20 C)

pKa/pKb

2.19 (pKa)

Partition Coefficient

1.18

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.

Inhalation

Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.

Skin

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

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

Keep container closed when not in use. Store in a tightly closed container. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Wash clothing before reuse.

Hazards Identification

Inhalation

May cause respiratory tract irritation.

Skin

May cause skin irritation. May be absorbed through the skin.

Eyes

May cause eye irritation and possible burns.

Ingestion

Causes gastrointestinal irritation with nausea, vomiting and diarrhea.

EC Risk Phrase

R 36/37/38 40

EC Safety Phrase

S 26 36/37/39

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.

Exposure Effects

May cause fetal effects.

Poison Class

3 (Strong toxins)

Fire Fighting Measures

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Combustion generates toxic fumes. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Fire Potential

During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Stability

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

Incompatibilities

Strong oxidizing agents; strong bases; reducing agents.

Decomposition

Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Transport Information

HS Code

2916 39 00