Product Identification

Product Name

3,4-Diaminonitrobenzene

Synonyms

1,2-Diamino-4-nitrobenzene
3,4-Diaminonitrobenzene
4-Nitro-1,2-diaminobenzene
4-Nitrobenzene-1,2-diamine
o-Phenylenediamine, 4-nitro-2-amino-4-nitroaniline
p-Nitro-o-phenylenediamine

CAS

99-56-9

Formula

C6H7N3O2

Molecular Weight

153.13999999999999

EINECS

202-766-3

RTECS

ST2975000

RTECS Class

Tumorigen; Mutagen; Reproductive Effector

Merck

12,6720

Beilstein/Gmelin

608106

Beilstein Reference

4-13-00-00075

EC Class

harmful

Physical and Chemical Properties

Appearance

Dark red needles.

Solubility in water

Insoluble

Melting Point

197 - 202

Partition Coefficient

.88

Usage

1,2-Diamino-4-nitrobenzene is used in semi-permanent & permanent hair coloring products. It produces brown, red & blond shades on hair. It has typically been used in medium-brown & medium-red dye formulations. It has also been used in bleach-toner formulations for reddish-blond shades.

First Aid Measures

Ingestion

Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or 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. Wash clothing before reuse.

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 tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Handling

Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.

Hazards Identification

Inhalation

May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.

Skin

May cause skin irritation. The toxicological properties of this material have not been fully investigated.

Eyes

May cause eye irritation. The toxicological properties of this material have not been fully investigated.

Ingestion

May cause irritation of the digestive tract. May be harmful if swallowed.

Hazards

Contact with metals may evolve flammable hydrogen gas.

EC Risk Phrase

R 22 36/38 40 43

EC Safety Phrase

S 28 36/37

UN (DOT)

2811

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

Abnormally low blood pressure and labored respirations may occur. CNS depression and peripheral neuropathy have been reported after ingestion.

Fire Fighting Measures

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Fire Potential

This material is probably combustible.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Disposal Code

3

Incompatibilities

Oxidizing agents.

Stability

Stable under normal temperatures and pressures.

Decomposition

Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Combustion Products

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

Transport Information

UN Number

2811

Hazard Class

6.1

Packing Group

I; II; III

HS Code

2921 51 19