Product Identification

Product Name

2,3-Benzodiazine

Synonyms

2,3-Benzodiazine
2,3-Diazanaphthalene
Benzo[d]pyridazine

CAS

253-52-1

Formula

C8H6N2

Molecular Weight

130.13999999999999

EINECS

205-963-2

Merck

12,7526

Beilstein/Gmelin

109240

Beilstein Reference

5-23-07-00149

Physical and Chemical Properties

Appearance

Slightly brown solid.

Solubility in water

Soluble

Melting Point

89 - 91

Boiling Point

315

Vapor Pressure

0.0008 (25 C)

pKa/pKb

10.53 (pKb)

Partition Coefficient

.46

Heat Of Vaporization

53.5 kJ/mol

Heat Of Combustion

-4253 kJ/mol

First Aid Measures

Ingestion

Get medical aid. Wash mouth out with water.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.

Skin

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

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage

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

Handling

Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.

Hazards Identification

Ingestion

Expected to be a low ingestion hazard.

Inhalation

Low hazard for usual industrial handling.

Skin

Non-irritating to the skin.

Eyes

No information regarding eye irritation and other potential effects was found.

EC Safety Phrase

S 22 24/25

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear chemical goggles. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear a chemical apron.

Respirators

A NIOSH/MSHA approved air purifying dust or mist respirator or European Standard EN 149.

Fire Fighting Measures

Flash Point

163

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

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide.