Product Identification

Product Name

Quinoxaline

Synonyms

1,4-Benzodiazine
1,4-Diazanaphthalene
1,4-Naphthyridine
Benzoparadiazine
Phenopiazine
Quinazine

CAS

91-19-0

Formula

C8H6N2

Molecular Weight

130.15

EINECS

202-047-4

RTECS

VD1225000

RTECS Class

Agricultural Chemical and Pesticide; Mutagen

Merck

12,8263

Beilstein/Gmelin

109351

Beilstein Reference

5-23-07-00135

Physical and Chemical Properties

Appearance

Yellow to brown solid. Quinoline-like odor.

Solubility in water

Slightly osluble

Melting Point

30 - 32

Boiling Point

230

Vapor Pressure

0.1 (25 C)

Density

1.1485 g/cm3 (32 C)

pKa/pKb

13.41 (pKb)

Partition Coefficient

1.35

Heat Of Vaporization

44.7 kJ/mol

Heat Of Combustion

-4179 kJ/mol

Usage

Used in the production of used as dyes, pharmaceuticals and antibiotics.

Refractive Index

1.6231 (20 C)

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

Keep away from sources of ignition. 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

No information found.

Inhalation

No information available.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

EC Risk Phrase

R 36/38

EC Safety Phrase

S 26 36

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

98

Fire Fighting

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

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment.

Stability and Reactivity

Disposal Code

3

Stability

No data.

Incompatibilities

Strong oxidizing agents.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide.

Transport Information

HS Code

2933 99 90