Quinoline

  • 1-Azonaphthalene
  • 1-Benzazine
  • Benzo[b]pyridine
Formula
C9H7N
Structure
Description
A colorless liquid with a peculiar odor.
Uses
Manufacture dyes, prepn hydroxyquinoline sulfate, q.V., Niacin. As preservative for anatomical specimens. Solvent for resins abd terpenes.

Registry Numbers and Inventories.
CAS
91-22-5
EC (EINECS/ELINCS)
202-051-6
EC Class
harmful
R 21/22 37/38 40 41
S 26 36/37/39
RTECS
VA9275000
RTECS class
Tumorigen; Mutagen; Primary Irritant
UN (DOT)
2656
Merck
12,8253
Beilstein/Gmelin
107477
Beilstein Reference
5-20-07-00276
Swiss Giftliste 1
G-1374
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C9H7N
Formula mass
129.16
Melting point, °C
-15
Boiling point, °C
238
Vapor pressure, mmHg
0.08 (25 C)
Vapor density (air=1)
4.45
Odor Threshold Odor threshold 71 ppm
Critical temperature
527
Critical pressure
55.2
Density
1.095 g/cm3 (20 C)
Solubility in water
Insoluble
Viscosity
3.76 cp (20 C)
Surface tension
45.0 g/s2 @ 20 C
Refractive index
1.62683 (20 C)
Dielectric constant
9 (25 C)
pKa/pKb
5.06 (pKb)
Partition coefficient, pKow
2.03
Heat of fusion
10.73 kJ/mol
Heat of vaporization
57.36 kJ/mol
Heat of combustion
-4683 kJ/mol

Hazards and Protection.
Storage
Keep away from heat and flame. Keep away from sources of ignition. Do not store in direct sunlight. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Material darkens in color on storage.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Avoid breathing vapors from heated material. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Avoid contact with heat, sparks and flame. Do not ingest or inhale.
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
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container.
Disposal code
5
Stability
Stable under normal temperatures and pressures. Substance undergoes color change upon exposure to light and air.
Incompatibilities
Linseed oil + thionyl chloride, perchromates, dinitrogen tetroxide, hydrogenperoxide, maleic anhydride. May attack some plastics. May be combustible when exposed to heat or flames.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.

Fire.
Flash Point,°C
107
Autoignition, °C
480
Upper exp. limit, %
7
Lower exp. limit, %
1.2
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
Contact with metals may evolve flammable hydrogen gas.
Combustion products
Toxic oxides of nitrogen may form in fires.
Health
3
 
Flammability
2
 
 
Reactivity
0
 

Health.
Carcinogin
CP65
Poison_Class
3
Exposure effects
   Ingestion
Harmful if swallowed. May cause irritation of the digestive tract.
   Inhalation
May cause respiratory muscle paralysis. Other symptoms include lethargy, irritation, sore throat, nose bleeds, hoarseness, cough, chest tightness, difficulty breathing, nausea, vomiting, dizziness, fever,
   Skin
Causes skin irritation. Harmful if absorbed through the skin. If absorbed, may cause symptoms similar to those for ingestion. If absorbed, causes symptoms similar to inhalation.
   Eyes
Causes severe eye irritation. May result in corneal injury. May cause retinitis. May cause retinal damage.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   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 immediately.

Transport.
UN number
2656
Response guide
Hazard class
6.1
Packing Group
III
 
USCG CHRIS Code
QNL
 
HS Code
2933 49 90
 
Std. Transport #
4925150