Pyridine

$9 - $16860

Price

Brand	Packaging	Price	Product name
AK Scientific X4374	100mL	$27	Pyridine
Alfa Aesar A12005	500ml	$51.2	Pyridine, 99+%
Alfa Aesar 032436	250ml	$51.9	Pyridine, Ultrapure, Spectrophotometric Grade, 99.5+%
Alfa Aesar 043799	100ml	$80	Pyridine, anhydrous, 99.5+%, packaged under Argon in resealable ChemSeal? bottles
Alfa Aesar 019378	500ml	$89.4	Pyridine, ACS, 99.0% min
Alfa Aesar 032436	1L	$127.65	Pyridine, Ultrapure, Spectrophotometric Grade, 99.5+%
Alfa Aesar 019378	1L	$144	Pyridine, ACS, 99.0% min
Alfa Aesar A12005	2500ml	$156	Pyridine, 99+%
Alfa Aesar 022905	1L	$181	Pyridine, HPLC Grade, 99.5+%
Alfa Aesar 043799	1L	$190	Pyridine, anhydrous, 99.5+%, packaged under Argon in resealable ChemSeal? bottles

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Melting point	-42 °C (lit.)
Boiling point	115 °C (lit.)
Density	0.978 g/mL at 25 °C (lit.)
vapor density	2.72 (vs air)
vapor pressure	23.8 mm Hg ( 25 °C)
FEMA	2966 \| PYRIDINE
refractive index	n20/D 1.509(lit.)
Flash point	68 °F
storage temp.	Store at +5°C to +30°C.
solubility	H2O: in accordance
form	Liquid
pka	5.25(at 25℃)
color	colorless
Odor	Nauseating odor detectable at 0.23 to 1.9 ppm (mean = 0.66 ppm)
Relative polarity	0.302
PH	8.81 (H2O, 20℃)
explosive limit	12.4%
Odor Threshold	0.063ppm
Odor Type	fishy
Water Solubility	Miscible
FreezingPoint	-42℃
λmax	λ: 305 nm Amax: 1.00 λ: 315 nm Amax: 0.15 λ: 335 nm Amax: 0.02 λ: 350-400 nm Amax: 0.01
Merck	14,7970
BRN	103233
Henry's Law Constant	18.4 at 30 °C (headspace-GC, Chaintreau et al., 1995)
Dielectric constant	12.5（20℃）
Exposure limits	TLV-TWA 5 ppm (～15 mg/m³) (ACGIH, MSHA,and OSHA); STEL 10 ppm (ACGIH), IDLH 3600 ppm (NIOSH).
Stability	Stable. Flammable. Incompatible with strong oxidizing agents, strong acids.
InChIKey	JUJWROOIHBZHMG-UHFFFAOYSA-N
LogP	0.64 at 20℃
CAS DataBase Reference	110-86-1(CAS DataBase Reference)
IARC	2B (Vol. 77, 119) 2019
NIST Chemistry Reference	Pyridine(110-86-1)
EPA Substance Registry System	Pyridine (110-86-1)