Product Identification

Product Name

4-Nitrobenzoic acid

Synonyms

1-Carboxy-4-nitrobenzene
Nitrodracylic acid
p-Nitrobenzoic acid

CAS

62-23-7

Formula

C7H5NO4

Molecular Weight

167.12

EINECS

200-526-2

RTECS

DH5075000

RTECS Class

Tumorigen; Mutagen; Primary Irritant

Merck

12,6686

Beilstein/Gmelin

973593

Beilstein Reference

4-09-00-01072

EC Class

harmful

Physical and Chemical Properties

Appearance

Yellowish-white crystals.

Solubility in water

0.42 g/L (20 C)

Melting Point

121

Boiling Point

359

Vapor Pressure

9E-6 (25 C)

Density

1.65 g/cm3

pKa/pKb

3.40 (pKa)

Partition Coefficient

1.89

Heat Of Vaporization

63.8 kJ/mol

Usage

Manufacturing intermediates. Also as a reagent for alkaloids and thorium.

Vapor Density

5.76

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. Wash clothing before reuse. Remove 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

Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed. Store protected from moisture.

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. Avoid ingestion and inhalation.

Hazards Identification

Ingestion

May cause digestive tract disturbances. May be harmful if swallowed.

Inhalation

Dust is irritating to the respiratory tract.

Skin

May cause skin irritation.

Eyes

Dust may cause mechanical irritation.

EC Risk Phrase

R 22 36/37/38

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.

Poison Class

3 (Strong toxins)

Fire Fighting Measures

Flash Point

166

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. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Fire Potential

This chemical is combustible.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed 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, acids, strong bases, potassium hydroxide.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.

Transport Information

HS Code

2916 39 00