Merck
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270970

Sigma-Aldrich

Pyridine

anhydrous, 99.8%

Empirical Formula (Hill Notation):
C5H5N
CAS Number:
Molecular Weight:
79.10
Beilstein:
103233
Número de EC:
Número MDL:
ID de la sustancia en PubChem:
NACRES:
NA.21

grado

anhydrous

Nivel de calidad

300

densidad de vapor

2.72 (vs air)

presión de vapor

10 mmHg ( 13.2 °C)
20 mmHg ( 25 °C)

ensayo

99.8%

formulario

liquid

temp. de autoignición

899 °F

lim. expl.

12.4 %

impurezas

<0.003% water
<0.005% water (100 mL pkg)

residuo de evap.

<0.0005%

color

colorless

índice de refracción

n20/D 1.509 (lit.)

pH

~8.81 (20 °C)

bp

115 °C (lit.)

mp

−42 °C (lit.)

densidad

0.978 g/mL at 25 °C (lit.)

SMILES string

C1=CN=CC=C1

InChI

1S/C5H5N/c1-2-4-6-5-3-1/h1-5H

InChI key

JUJWROOIHBZHMG-UHFFFAOYSA-N

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Descripción general

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

Aplicación

Pyridine (py) may be used in the preparation of vanadium oxide nanoparticles and iron benzenedicarboxylates, Fe(OH)(BDC)(py)0.85 (BDC = 1,4-benzenedicarboxylate, py = pyridine). It may be employed as catalyst in Knoevenagel condensation reaction.
Pyridine may be used as a base for the conversion of:
  • Alkyltrichlorosilanes to trimethoxyalkylsilanes, which are used as precursors for preparing alkylsilicates.
  • 1-Indanone to 1-indanone oxime, which can undergo reductive ring-expansion to form tetrahydroquinoline.

It may also be used to catalyze the borylation reaction of haloarenes to form arylboronates without using transition metal catalysts.

Envase

4×25, 100, 12×100 mL in Sure/Seal™
1, 6×1, 2, 4×2 L in Sure/Seal™
200 L in Pure-Pac™ 1

pictogramas

FlameExclamation mark

Palabra de señalización

Danger

Clasificaciones de peligro

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

Código de clase de almacenamiento

3 - Flammable liquids

WGK

WGK 2

Punto de inflamabilidad F

68.0 °F - closed cup

Punto de inflamabilidad C

20 °C - closed cup

Equipo de protección personal

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Certificate of Analysis

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Certificate of Origin

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