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Merck
CN

P3776

Pyridine

≥99%

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About This Item

Empirical Formula (Hill Notation):
C5H5N
CAS Number:
Molecular Weight:
79.10
EC Number:
203-809-9
UNSPSC Code:
12352103
MDL number:
Beilstein/REAXYS Number:
103233
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vapor pressure

10 mmHg ( 13.2 °C), 20 mmHg ( 25 °C)

assay

≥99%

autoignition temp.

899 °F

refractive index

n20/D 1.509 (lit.)

mp

−42 °C (lit.)

solubility

water: soluble

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pictograms

FlameExclamation mark

signalword

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

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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Direct determination of citric acid in milk with an improved pyridine-acetic anhydride method.
Marier JR and Boulet M.
Journal of Dairy Science, 41(12), 1683-1692 (1958)
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)
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)

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