Product Identification

Product Name

Benazol P

Synonyms

2-(2H-Benzotriazol-2-yl)-4-methylphenol
2-(2-Hydroxy-5-methylphenyl)benzotriazole
2-(Benzotriazol-2-yl)-4-methylphenol
Benazol P
Drometrizole
Porex P

CAS

2440-22-4

Formula

C13H11N3O

Molecular Weight

225.25

EINECS

219-470-5

RTECS

GO6860000

RTECS Class

Primary Irritant

Merck

12,3503

Beilstein/Gmelin

615546

Beilstein Reference

6-26

Physical and Chemical Properties

Solubility in water

Insoluble

Melting Point

127 - 129

Boiling Point

424

Vapor Pressure

9E-8 (25 C)

pKa/pKb

8.15 (pKa)

Heat Of Vaporization

70.5 kJ/mol

Usage

An ultraviolet light absorber for stabilizing plastics and other organic materials against discoloration and deterioration.

First Aid Measures

Ingestion

If swallowed, wash out mouth with water provided person is conscious. Call a physician.

Inhalation

If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.

Skin

In case of contact, immediately wash skin with soap and copious amounts of water.

Eyes

In case of contact, immediately flush eyes with copious amounts of water for at least 15 minutes.

Handling and Storage

Storage

Keep tightly closed.

Hazards Identification

Inhalation

May be harmful if inhaled. Material may be irritating to mucous membranes and upper respiratory tract.

Skin

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

Eyes

Causes eye irritation.

Ingestion

May be harmful if swallowed.

Hazards

Emits toxic fumes under fire conditions.

EC Risk Phrase

36

EC Safety Phrase

26 36

Exposure Controls/Personal Protection

Personal Protection

Compatible chemical-resistant gloves. Chemical safety goggles.

Respirators

Government approved respirator.

Exposure Effects

Irritant. Irritating to eyes.

Fire Fighting Measures

Flash Point

210

Fire Fighting

Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.

Accidental Release Measures

Small spills/leaks

Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.

Stability and Reactivity

Stability

Stable at normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

Carbon monoxide, Carbon dioxide, Nitrogen oxides.