Product Identification

Product Name

C.I. 12055

Synonyms

(1Z)-1-(Phenylhydrazinylidene)naphthalen-2-one
1-(Phenylazo)-2-hydroxynaphthalene
1-Phenylazo-2-naphthol
Morton Orange Y
Solvent Yellow 14
Waxoline Yellow IS

CAS

842-07-9

Formula

C16H12N2O

Molecular Weight

248.3

EINECS

212-668-2

RTECS

QL4900000

RTECS Class

Tumorigen; Mutagen

Beilstein/Gmelin

651992

Beilstein Reference

4-16-00-00228

EC Index Number

611-056-00-6

EC Class

Carcinogenic Category 3; Mutagenic Category 3; Sensitising; Dangerous for the Environment

Physical and Chemical Properties

Appearance

Dark reddish-yellow leaflets or orange powder. Slight odor.

Solubility in water

Insoluble

Melting Point

135

Boiling Point

444

Vapor Pressure

2E-8 (25 C)

Density

1.119 g/cm3 (151 C)

pKa/pKb

13.50 pKa

Partition Coefficient

4.24

Heat Of Vaporization

72.8 kJ/mol

Heat Of Combustion

-8263 kJ/mol

Usage

Dye for hydrocarbon solvents, oils, fats, waxes, shoe & floor polishes, gasoline, soap, colored smokes, cellulose ether varnishes, & styrene resins.

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.

Eyes

Immediately 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 place. Store in a cool, dry, well-ventilated 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.

Hazards Identification

Inhalation

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

Skin

May cause skin irritation. Prolonged and/or repeated contact may cause irritation and/or dermatitis. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material.

Eyes

May cause eye irritation.

Ingestion

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

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

290

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, dry chemical, chemical foam, or alcohol-resistant foam.

Fire Potential

This material is probably combustible.

Accidental Release Measures

Small spills/leaks

Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide.