beta-Naphthylamine

  • 2-Aminonaphthalene
  • 2-Naphthalenamine
  • 6-Naphthylamine
  • 2-Naphthylamine
Formula
C10H9N
Structure
Description
A white to reddish colored solid in the form of flakes.
Uses
Formerly used in the manufacture of rubber.

Registry Numbers and Inventories.
CAS
91-59-8
EC (EINECS/ELINCS)
202-080-4
EC Index Number
612-022-00-3
EC Class
Carcinogenic Category 1; Harmful; Dangerous for the Environment
RTECS
QM2100000
RTECS class
Tumorigen; Mutagen
UN (DOT)
1650
Merck
12,6486
Beilstein/Gmelin
606264
Beilstein Reference
4-12-00-03122
RCRA
U168
Swiss Giftliste 1
G-43306
New Zealand
Listed

Properties.
Formula
C10H9N
Formula mass
143.19
Melting point, °C
111-113
Boiling point, °C
306
Vapor pressure, mmHg
0.001 (25 C)
Vapor density (air=1)
4.95
Odor Threshold Odor threshold 1.4-1.9 mg/m3
Density
1.0614 g/cm3 (98 C)
Solubility in water
Miscible in hot water
Viscosity
1.34 cp (130 C)
Surface tension
36.87 g/s2 (142 C)
Refractive index
1.6493 (98 C)
pKa/pKb
9.80 (pKb)
Partition coefficient, pKow
2.07
Heat of vaporization
54.8 kJ/mol
Heat of combustion
-5307 kJ/mol

Hazards and Protection.
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.
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.
Stability
Vapors can be explosive. Stable.
Incompatibilities
Incompatible with strong oxidizing agents and strong acids Incompatible with nitrous acid.

Fire.
Flash Point,°C
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.
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.
Combustion products
When exposed to heat or flame, it emits toxic fumes.

Health.
Exposure limit(s)
NIOSH REL: Ca See Appendix A OSHA PEL: [1910.1009] See Appendix B
Carcinogin
O, G-A1, I-1, N-1, CP65
Poison_Class
1*
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
1650
Response guide
Hazard class
6.1
Packing Group
II
 
USCG CHRIS Code
NAP
 
Std. Transport #
4921593