Product Identification

Product Name

Azoamine Scarlet K

Synonyms

2-Methoxy-5-nitroaniline
Azoamine Scarlet K
Azogene ecarlate R
Scarlet base R

CAS

99-59-2

Formula

C7H8N2O3

Molecular Weight

168.17

EINECS

202-770-5

RTECS

BZ7175000

RTECS Class

Tumorigen; Mutagen

Beilstein/Gmelin

879620

Beilstein Reference

4-13-00-00896

Physical and Chemical Properties

Appearance

Orange-red needles or orange powder.

Solubility in water

Slightly soluble

Melting Point

118

Boiling Point

352

Vapor Pressure

4E-5 (25 C)

Density

1.2068 g/cm3 (156 C)

pKa/pKb

11.58 (pKb)

Partition Coefficient

1.47

Heat Of Vaporization

59.7 kJ/mol

Heat Of Combustion

-3666 kJ/mol

Usage

Chemical intermediate for dyes and pigments (eg, ci pigment red 23), component in azoic dye compositions for cotton and nylon, acetate and silk.

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

Dust may cause mechanical irritation.

Ingestion

May cause irritation of the digestive tract.

Hazards

Contact with metals may evolve flammable hydrogen gas.

EC Risk Phrase

R 20/21/22 33 52

EC Safety Phrase

S 28 36/37 61

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

May cause cancer according to animal studies.

Exposure limit(s)

NIOSH: Potential Occupational Carcinogen.

Fire Fighting Measures

Flash Point

167

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Combustible material; may burn but does not ignite readily. Extinguishing media: Water or foam may cause frothing. Use foam, dry chemical, or carbon dioxide.

Fire Potential

This material is probably combustible.

Accidental Release Measures

Small spills/leaks

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

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, acids, acid chlorides, acid anhydrides, chloroformates, liquid anisidine.

Decomposition

Nitrogen oxides, carbon monoxide, 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