1-Naphthylamine

  • Naphthalidine
  • 1-Aminonaphthalene
  • alpha-Naphthylamine
Formula
C10H9N
Structure
Description
A crystalline solid or a solid dissolved in a liquid.
Uses
Toning prints made with cerium salts.

Registry Numbers and Inventories.
CAS
134-32-7
EC (EINECS/ELINCS)
205-138-7
EC Index Number
612-020-00-2
EC Class
Harmful; Dangerous for the Environment
RTECS
QM1400000
RTECS class
Tumorigen; Mutagen
UN (DOT)
2077
Merck
12,6485
Beilstein/Gmelin
386133
Beilstein Reference
4-12-00-03009
RCRA
U167
Swiss Giftliste 1
G-43306
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C10H9N
Formula mass
143.19
Melting point, °C
50.0
Boiling point, °C
300
Vapor pressure, mmHg
0.0011 (25 C)
Vapor density (air=1)
4.93
Density
1.171 g/cm3 (20 C)
Solubility in water
20 mg/L
Viscosity
6.26 cp (63.9 C)
Surface tension
47.25 g/s2 (54 C)
Refractive index
1.6594 (51.2 C)
pKa/pKb
1.06 (pKa)
Partition coefficient, pKow
168.49
Heat of vaporization
54.1 kJ/mol
Heat of combustion
-5316 kJ/mol

Hazards and Protection.
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.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
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
Oxidizes in air.
Incompatibilities
Incompatible with oxidizing agents Incompatible with nitrous acid.

Fire.
Flash Point,°C
157
Autoignition, °C
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.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
Combustion products
Toxic nitrogen oxides are produced in a fire.
Health
2
 
Flammability
1
 
 
Reactivity
0
 

Health.
Exposure limit(s)
NIOSH REL: Ca See Appendix A OSHA PEL: [1910.1004] See Appendix B
Carcinogin
O, CP65
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%.
   Ingestion
Nausea and vomiting may occur.
   Inhalation
Dyspnea and tachypnea may occur.
   Skin
Central cyanosis unresponsive to oxygen therapy is classic.
   Eyes
See Inhalation.

First aid
 
   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.

Transport.
UN number
2077
Response guide
Hazard class
6.1
Packing Group
III
 
USCG CHRIS Code
NAO
 
Std. Transport #
4925141