Product Identification

Product Name

beta-Naphthylamine

Synonyms

2-Aminonaphthalene
2-Naphthalenamine
2-Naphthylamine
6-Naphthylamine
Naphthalen-2-amine

CAS

91-59-8

Formula

C10H9N

Molecular Weight

143.19

EINECS

202-080-4

RTECS

QM2100000

RTECS Class

Tumorigen; Mutagen

Merck

12,6486

Beilstein/Gmelin

606264

Beilstein Reference

4-12-00-03122

EC Index Number

612-022-00-3

EC Class

Carcinogenic Category 1; Harmful; Dangerous for the Environment

Physical and Chemical Properties

Appearance

A white to reddish colored solid in the form of flakes.

Solubility in water

Miscible in hot water

Melting Point

111-113

Boiling Point

306

Vapor Pressure

0.001 (25 C)

Density

1.0614 g/cm3 (98 C)

pKa/pKb

9.80 (pKb)

Partition Coefficient

2.07

Heat Of Vaporization

54.8 kJ/mol

Heat Of Combustion

-5307 kJ/mol

Usage

Formerly used in the manufacture of rubber.

Vapor Density

4.95

Odor threshold

1.4-1.9 mg/m3

Refractive Index

1.6493 (98 C)

First Aid Measures

Ingestion

DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital.

Inhalation

IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.

Skin

IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. IMMEDIATELY call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. IMMEDIATELY transport the victim to a hospital for treatment after washing the affected areas.

Eyes

First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Handling and Storage

Storage

Keep in cool dry location away from ignition sources.

Handling

All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification

Inhalation

Dyspnea and tachypnea may occur.

Skin

Central cyanosis unresponsive to oxygen therapy is classic.

Eyes

See Inhalation.

Ingestion

Nausea and vomiting may occur.

Hazards

When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards. May polymerize explosively when heated or involved in a fire. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.

UN (DOT)

1650

Exposure Controls/Personal Protection

Personal Protection

Wear appropriate protective gloves, clothing and goggles.

Respirators

Wear positive pressure self-contained breathing apparatus (SCBA).

Exposure Effects

CNS effects include headache, dizziness, altered mental status, confusion (lethargy progressing coma), seizures, syncope; occur secondary to CNS hypoxia, usually with levels > 20%.

Exposure limit(s)

NIOSH REL: Ca See Appendix A OSHA PEL: [1910.1009] See Appendix B

Poison Class

1*

Fire Fighting Measures

Flash Point

157

Fire Fighting

Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use water in flooding quantities as fog. Use foam, dry chemical, or carbon dioxide. Keep run-off water out of sewers and water sources.

Fire Potential

May burn but does not ignite readily.

Accidental Release Measures

Small spills/leaks

Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers.

Stability and Reactivity

Incompatibilities

Incompatible with strong oxidizing agents and strong acids Incompatible with nitrous acid.

Stability

Vapors can be explosive. Stable.

Combustion Products

When exposed to heat or flame, it emits toxic fumes.

Transport Information

UN Number

1650

Hazard Class

6.1

Packing Group

II