Product Identification

Product Name

5-Nitrobenzimidazole

Synonyms

5(6)-Nitrobenzimidazole
6-Nitro-1H-benzimidazole

CAS

94-52-0

Formula

C7H5N3O2

Molecular Weight

163.13999999999999

EINECS

202-341-2

RTECS

DD9800000

RTECS Class

Agricultural Chemical and Pesticide; Tumorigen; Mutagen

Beilstein/Gmelin

7926

Beilstein Reference

4-23-00-01101

Physical and Chemical Properties

Appearance

Off-white to pale yellow fluffy powder.

Solubility in water

> 250 mg/L

Melting Point

200 - 203

Partition Coefficient

.91

Usage

Antifogging agent in photographic developers.

First Aid Measures

Ingestion

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

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. Flush skin with plenty of soap and water for at least 15 minutes while removing 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 place. Store in a tightly closed container.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Avoid contact with skin and eyes. Do not ingest or inhale. Use only in a chemical fume hood.

Hazards Identification

Inhalation

Inhalation of high concentrations may cause central nervous system effects characterized by headache, dizziness, unconsciousness and coma. May cause respiratory tract irritation. Irritation may lead to chemical pneumonitis and pulmonary edema.

Skin

May cause skin irritation. May be absorbed through the skin in harmful amounts.

Eyes

May cause eye irritation.

Ingestion

May cause irritation of the digestive tract. May cause central nervous system depression, kidney damage, and liver damage. Symptoms may include: headache, excitement, fatigue, nausea, vomiting, stupor, and coma.

EC Risk Phrase

R 22 40

EC Safety Phrase

S 22 36/37 45

UN (DOT)

2811

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 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

Possible cancer hazard based on tests with laboratory animals.

Fire Fighting Measures

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container.

Stability and Reactivity

Disposal Code

3

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, strong bases.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide.

Transport Information

UN Number

2811

HS Code

2933 99 90