1-Chloronaphthalene

  • alpha-Chloronaphthalene
Formula
C10H7Cl
Structure
Description
Clear colorless to amber oily viscous liquid.
Uses
As immersion liquid in (microscopic) determination of refractive index of crystals, solvent for oils, fat, ddt.

Registry Numbers and Inventories.
CAS
90-13-1
EC (EINECS/ELINCS)
201-967-3
R 22 51/53
S 36/37 61
RTECS
QJ2100000
RTECS class
Mutagen
UN (DOT)
3082
Merck
13,2168
Beilstein/Gmelin
970836
Beilstein Reference
4-05-00-01648
RCRA
u047
Swiss Giftliste 1
G-2546
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C10H7Cl
Formula mass
162.62
Melting point, °C
-2.5
Boiling point, °C
263
Vapor pressure, mmHg
0.02 (25 C)
Vapor density (air=1)
5.6
Density
1.1938 g/cm3 (20 C)
Solubility in water
Insoluble
Viscosity
3.33 cp (20 C)
Surface tension
41.04 g/s2 (20 C)
Refractive index
1.63321 (20 C)
Partition coefficient, pKow
3.90
Heat of fusion
12.9 kJ/mol
Heat of vaporization
47.8 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Keep container closed when not in use.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
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 and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
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
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Hydrogen chloride, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
121
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
Health
1
 
Flammability
1
 
 
Reactivity
0
 

Health.
Poison_Class
3
Exposure effects
Experimental carcinogen.
   Ingestion
Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May cause liver damage. May cause central nervous system depression, characterized by excitement, followed by headache, dizziness, drowsiness, and nausea. Advanced stages may cause collapse, unconsciousness, coma and possible death due to respiratory failure. Aspiration of material into the lungs may cause chemical pneumonitis, which may be fatal. May cause skin eruptions and/or acne.
   Inhalation
Causes respiratory tract irritation. May cause effects similar to those described for ingestion.
   Skin
Causes severe skin irritation.
   Eyes
Causes severe eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if symptoms occur.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
3082
Response guide
USCG CHRIS Code
CLF
 
36 Halogenated hydrocarbons