Product Identification

Product Name

5-Phenyl-1H-tetrazole

Synonyms

5-Phenyltetrazole
Expandex-5PT
Expandex-OX-5PT
Kempore-50XPT
MA-1623
Phenyltetrazole

CAS

18039-42-4

Formula

C7H6N4

Molecular Weight

146.15

EINECS

241-950-8

RTECS

XF7538750

RTECS Class

Other

Beilstein/Gmelin

124483

Beilstein Reference

4-26-00-01772

Physical and Chemical Properties

Appearance

White crystalline powder.

Solubility in water

Very soluble

Melting Point

222

Boiling Point

331

Vapor Pressure

0.0002 (25 C)

pKa/pKb

4.50 (pKa)

Partition Coefficient

1.28

Heat Of Vaporization

57.3 kJ/mol

Heat Of Combustion

-3907 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.

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.

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

Harmful if swallowed. May cause irritation of the digestive tract.

Inhalation

May cause respiratory tract irritation.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

Exposure Controls/Personal Protection

Personal Protection

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.

Fire Fighting Measures

Flash Point

161

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

No data.

Incompatibilities

Strong oxidizing agents, strong acids, acid chlorides, acid anhydrides.

Decomposition

Carbon monoxide, oxides of nitrogen, carbon dioxide.