Product Identification

Product Name

Naphthalidam

Synonyms

1-Aminonaphthalene
alpha-Naphthylamine
Naphthalen-1-amine
Naphthalidine

CAS

134-32-7

Formula

C10H9N

Molecular Weight

143.19

EINECS

205-138-7

RTECS

QM1400000

RTECS Class

Tumorigen; Mutagen

Merck

12,6485

Beilstein/Gmelin

386133

Beilstein Reference

4-12-00-03009

EC Index Number

612-020-00-2

EC Class

Harmful; Dangerous for the Environment

Physical and Chemical Properties

Appearance

A crystalline solid or a solid dissolved in a liquid.

Solubility in water

20 mg/L

Melting Point

50

Boiling Point

300

Vapor Pressure

0.0011 (25 C)

Density

1.171 g/cm3 (20 C)

pKa/pKb

1.06 (pKa)

Partition Coefficient

168.49

Heat Of Vaporization

54.1 kJ/mol

Heat Of Combustion

-5316 kJ/mol

Usage

Toning prints made with cerium salts.

Vapor Density

4.93

Refractive Index

1.6594 (51.2 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

1-Naphthylamine should be stored at cool ambiant temperatures. Irritating gases are produced when subjected to heat.

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.

UN (DOT)

2077

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: [1910.1004] See Appendix B

Fire Fighting Measures

Flash Point

157

Autoignition

485

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

Slightly flammable.

Accidental Release Measures

Small spills/leaks

Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Do not use water. Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Cover solids with a plastic sheet to prevent dissolving in rain or fire fighting water. Dike surface flow using soil, sand bags, foamed polyurethane, or foamed concrete. Water spill: Use natural barriers or oil spill control booms to limit spill travel. Use natural deep water pockets, excavated lagoons, or sand bag barriers to trap material at bottom. Remove trapped material with suction hoses.

Stability and Reactivity

Incompatibilities

Incompatible with oxidizing agents Incompatible with nitrous acid.

Stability

Oxidizes in air.

Combustion Products

Toxic nitrogen oxides are produced in a fire.

Transport Information

UN Number

2077

Hazard Class

6.1

Packing Group

III