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Safety Information

16037

Sigma-Aldrich

Pyridine

≥99.5% (GC)

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About This Item

Empirical Formula (Hill Notation):
C5H5N
CAS Number:
110-86-1
Molecular Weight:
79.10
Beilstein:
103233
EC Number:
203-809-9
MDL number:
MFCD00011732
UNSPSC Code:
12352005
PubChem Substance ID:
329751044

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vapor density

2.72 (vs air)

vapor pressure

10 mmHg ( 13.2 °C)
20 mmHg ( 25 °C)

Assay

≥99.5% (GC)

form

liquid

autoignition temp.

899 °F

expl. lim.

12.4 %

impurities

≤0.01% non-volatile matter
≤0.1% water (Karl Fischer)

refractive index

n20/D 1.509 (lit.)

bp

115 °C (lit.)

mp

−42 °C (lit.)

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1 of 4

This Item
27097033553MP57506
吡啶 ≥99.5% (GC)

16037

吡啶

吡啶 anhydrous, 99.8%

270970

吡啶

吡啶 puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99.5% (GC)

33553M

吡啶

吡啶 ReagentPlus®, ≥99%

P57506

吡啶

assay

≥99.5% (GC)

assay

99.8%

assay

≥99.5% (GC)

assay

≥99%

solubility

water: soluble

solubility

-

solubility

H2O: in accordance

solubility

-

mp

−42 °C (lit.)

mp

−42 °C (lit.)

mp

−42 °C (lit.)

mp

−42 °C (lit.)

bp

115 °C (lit.)

bp

115 °C (lit.)

bp

115 °C (lit.)

bp

115 °C (lit.)

density

0.978 g/mL at 25 °C (lit.)

density

0.978 g/mL at 25 °C (lit.)

density

0.978 g/mL at 25 °C (lit.)

density

0.978 g/mL at 25 °C (lit.)

refractive index

n20/D 1.509 (lit.)

refractive index

n20/D 1.509 (lit.)

refractive index

n20/D 1.509 (lit.)

refractive index

n20/D 1.509 (lit.)

General description

Pyridine is a basic N-heterocyclic compound. It acts as a nitrogen donor ligand and forms many metal-pyridine complexes. Its complexes having tetrahedral and octahedral geometries can be differentiated by infra red spectral investigations.[1]

Application

Pyridine (py) may be used in synthesis of vanadium oxide nanoparticles[2] and iron benzenedicarboxylates, Fe(OH)(BDC)(py)0.85 (BDC = 1,4-benzenedicarboxylate).[3] It may be employed as a catalyst in the Knoevenagel condensation reaction.[4]

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

68.0 °F - closed cup

Flash Point(C)

20 °C - closed cup

Regulatory Information

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    Porous monodisperse V2O5 microspheres as cathode materials for lithium-ion batteries.
    Wang S, et al.
    Journal of Materials Chemistry, 21(17), 6365-6369 (2011)
    The far-infrared spectra of metal-halide complexes of pyridine and related ligands.
    Clark RJH and Williams CS.
    Inorganic Chemistry, 4(3), 350-357 (1965)
    An investigation of Knoevenagel condensation reaction in microreactors using a new zeolite catalyst.
    Zhang X, et al.
    Applied Catalysis A: General, 261(1), 109-118 (2004)
    Metal-organic frameworks based on iron oxide octahedral chains connected by benzenedicarboxylate dianions.
    Whitfield TR, et al.
    Solid State Sciences, 7(9), 1096-1103 (2005)
    Total syntheses of complanadines A and B.
    Le Zhao et al.
    Angewandte Chemie (International ed. in English), 52(6), 1722-1725 (2013-01-03)
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