Product Identification

Product Name

1,3-Diaminobenzene

Synonyms

1,3-Phenylenediamine
Benzene-1,3-diamine

CAS

108-45-2

Formula

C6H8N2

Molecular Weight

108.14

EINECS

203-584-7

RTECS

SS7700000

RTECS Class

Tumorigen; Mutagen; Reproductive Effector; Primary Irritant

Merck

12,7437

Beilstein/Gmelin

471357

Beilstein Reference

4-13-00-00079

EC Index Number

612-147-00-3

EC Class

Mutagenic Category 3; Toxic; Irritant; Sensitising; Dangerous for the Environment

Physical and Chemical Properties

Appearance

White crystalline solid becoming red on exposure to air.

Solubility in water

Very soluble

Melting Point

63 - 64

Boiling Point

282

Vapor Pressure

0.003 (25 C)

Density

1.1421 g/cm3 (10 C)

pKa/pKb

9.02 (pKb)

Partition Coefficient

-.33

Heat Of Vaporization

52.2 kJ/mol

Heat Of Combustion

-3498 kJ/mol

Usage

Manufacture dyes, rubber curing agents, ion exchange resins, decolorizing resins, formaldehyde condensates, resinous polyamides, block polymers, textile fibers, urethanes, petroleum additives, rubber chemicals, in corrosion inhibitors, in photography, as reagent for gold & bromine.

Vapor Density

3.7

Refractive Index

1.62558 (57.7 C)

First Aid Measures

Ingestion

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

Handling and Storage

Storage

Store in a tightly closed container. Store protected from light. Store in a cool, dry area away from incompatible substances.

Handling

Wash thoroughly after handling. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Store protected from light.

Hazards Identification

Inhalation

Dust is irritating to the respiratory tract.

Skin

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

Eyes

May cause eye irritation. May result in corneal injury.

Ingestion

Harmful if swallowed. May cause irritation of the digestive tract. May cause liver and kidney damage.

Hazards

Dust may form explosive mixtures in air

EC Risk Phrase

R 23/24/25 36 40 43 50/53 68

EC Safety Phrase

S 28 36/37 45 60 61

UN (DOT)

1673

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 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.

Exposure Effects

Prolonged or repeated skin contact may cause dermatitis.

Poison Class

3

Fire Fighting Measures

Flash Point

148

Autoignition

560

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.

Upper exp. limit

9.8

Lower exp. limit

1.3

Fire Potential

This chemical is combustible.

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Disposal Code

9

Incompatibilities

Strong oxidizing agents.

Stability

Unstable in air

Decomposition

Carbon monoxide, carbon dioxide.

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

1673

Hazard Class

6.1

Packing Group

III

HS Code

2921 51 19