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108-99-6

Name 3-Picoline
CAS 108-99-6
EINECS(EC#) 203-636-9
Molecular Formula C6H7N
MDL Number MFCD00006402
Molecular Weight 93.13
MOL File 108-99-6.mol

Chemical Properties

Appearance Picolines are colorless liquids. Strong, unpleasant, pyridine-like odor.“Picoline” is often used as mixed isomers.
Melting point  -19 °C (lit.)
Boiling point  144 °C (lit.)
density  0.957 g/mL at 25 °C(lit.)
vapor density  3.2 (vs air)
vapor pressure  4.4 mm Hg ( 20 °C)
refractive index  n20/D 1.504(lit.)
Fp  97 °F
storage temp.  Flammables area
solubility  alcohol: miscible(lit.)
form  Liquid
pka 5.68(at 20℃)
color  Clear yellow
Odor Unpleasant
PH 10 (100g/l, H2O, 20℃)
Stability: Stable. Flammable. Hygroscopic. Incompatible with oxidizing agents.
explosive limit 1.3-8.7%(V)
Water Solubility  soluble
Detection Methods GC
Merck  14,7401
BRN  1366
Dielectric constant 11.1
InChIKey ITQTTZVARXURQS-UHFFFAOYSA-N
LogP 1.2 at 20℃
CAS DataBase Reference 108-99-6(CAS DataBase Reference)
IARC 3 (Vol. 122) 2019
NIST Chemistry Reference Pyridine, 3-methyl-(108-99-6)
EPA Substance Registry System 108-99-6(EPA Substance)

Safety Data

Hazard Codes  C,Xn
Risk Statements 
R10:Flammable.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R34:Causes burns.
R36/37/38:Irritating to eyes, respiratory system and skin .
R22:Harmful if swallowed.
Safety Statements 
S16:Keep away from sources of ignition-No smoking .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36:Wear suitable protective clothing .
RIDADR  UN 2313 3/PG 3
WGK Germany  1
RTECS  TJ5000000
Autoignition Temperature ~1000 °F
TSCA  Yes
HazardClass  3
PackingGroup  III
HS Code  29333999
Safety Profile
Poison by intravenous and intraperitoneal routes. Moderately toxic by ingestion. Flammable when exposed to heat or flame; can react vigorously with oxidizing materials. When heated to decomposition it emits toxic fumes of NOx.
Hazardous Substances Data 108-99-6(Hazardous Substances Data)
Toxicity
bird - wild,LD50,oral,1gm/kg (1000mg/kg),Archives of Environmental Contamination and Toxicology. Vol. 12, Pg. 355, 1983.

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