1,5-Naphthylenediamine

  • 1,5-Naphthalenediamine
  • 1,5-Diaminonapthalene
Formula
C10H10N2
Structure
Description
Colorless to pale purple crystals or lavender powder.
Uses
Organic synthesis.

Registry Numbers and Inventories.
CAS
2243-62-1
EC (EINECS/ELINCS)
218-817-8
EC Index Number
612-089-00-9
EC Class
Carcinogenic Category 3; Dangerous for the Environment
R 40 50/53
S 36/37 60 61
RTECS
QJ3400000
RTECS class
Tumorigen; Mutagen
UN (DOT)
2811
Beilstein/Gmelin
907947
Beilstein Reference
4-13-00-00340
Japan ENCS (MITI)
Listed

Properties.
Formula
C10H10N2
Formula mass
158.20
Melting point, °C
188
Boiling point, °C
381
Vapor pressure, mmHg
30 (200 C)
Density
1.4 g/cm3
Solubility in water
Slightly soluble
pKa/pKb
9.47 (pKb)
Partition coefficient, pKow
0.89
Heat of vaporization
63.0 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
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.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container.
Stability
No data.
Incompatibilities
Strong oxidizing agents - strong acids - acid chlorides - acid anhydrides.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
220
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 spray, dry chemical, carbon dioxide, or chemical foam.
Fire potential
This material is probably combustible.
Hazards
Contact with metals may evolve flammable hydrogen gas.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
   Ingestion
The toxicological properties of this substance have not been fully investigated. May be harmful if swallowed.
   Inhalation
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Get medical aid. Wash mouth out with water.
   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
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
2811
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
9. Aromatic amines
HS Code
2921 59 90