Product Identification

Product Name

2-Methoxy-4-nitroaniline

Synonyms

4-Nitro-o-anisidine
Azoamine Pink O
Azoic Diazo No. 5
C.I. 37125

CAS

97-52-9

Formula

C7H8N2O3

Molecular Weight

168.15

EINECS

202-588-6

RTECS

BZ7170000

RTECS Class

Other

Beilstein/Gmelin

879619

Beilstein Reference

4-13-00-00903

EC Class

harmful

Physical and Chemical Properties

Appearance

Yellow to orange powder.

Solubility in water

Slightly soluble

Melting Point

139

Boiling Point

364

Vapor Pressure

2E-5 (25 C)

Density

1.2112 g/cm3 (156 C)

pKa/pKb

12.98 (pKb)

Partition Coefficient

1.85

Heat Of Vaporization

61.0 kJ/mol

Heat Of Combustion

-3701 kJ/mol

First Aid Measures

Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.

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 immediately.

Handling and Storage

Storage

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

Handling

Wash thoroughly after handling. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.

Hazards Identification

Inhalation

May cause respiratory tract irritation.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

Ingestion

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

EC Risk Phrase

R 20/21/22 33

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

The toxological properties of this substance have not been fully investigated.

Fire Fighting Measures

Flash Point

174

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. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

Accidental Release Measures

Small spills/leaks

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

Stability and Reactivity

Disposal Code

3

Incompatibilities

Acids - acid chlorides - acid anhydrides - chloroformates - strong oxidizing agents.

Stability

Stable under normal temperatures and pressures.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.

Transport Information

UN Number

2811

HS Code

2922 29 00