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360570 Sigma-Aldrich

Pyridine

ACS reagent, ≥99.0%

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Properties

Related Categories ACS Grade, ACS Grade Solvents, ACS and Reagent Grade Solvents, Amber Glass Bottles, Carbon Steel Cans with NPT Threads,
grade   ACS reagent
vapor density   2.72 (vs air)
vapor pressure   10 mmHg ( 13.2 °C)
  20 mmHg ( 25 °C)
assay   ≥99.0%
autoignition temp.   899 °F
expl. lim.   12.4 %
impurities   Reducing substances, passes test
  ≤0.002% NH3
  0.1% water
evapn. residue   ≤0.002%
color   colorless
refractive index   n20/D 1.509(lit.)
bp   115 °C(lit.)
mp   −42 °C(lit.)
solubility   water: soluble
density   0.978 g/mL at 25 °C(lit.)
anion traces   chloride (Cl-): ≤0.001%
  sulfate (SO42-): ≤0.001%
cation traces   Cu: ≤5 ppm

Description

Other Notes

A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.

Packaging

1, 2.5, 4×4 L in glass bottle

View returnable container options.

100, 500 mL in glass bottle

18, 20 L in steel drum

Application

Pyridine may be used in the synthesis of the following:
• complexes with cobalt(II) halides
• pyridine-d5, a deuterated form of pyridine
• ionic liquid matrices (ILMs)

General description

Pyridine (Pyr) is a nitrogen containing six membered heterocyclic compound commonly used as a base. It is a colorless liquid with a fishy odor. Pyridine moiety is present as a major component in a number of compounds like pyridine nucleotides, pyridine alkaloids, pyridine-based polymers and pyridine-containing macrocycles. It has wide application as a solvent, catalyst and as an intermediate for synthesis. IR, Raman and UV spectra of pyridine has been analyzed and the values obtained were used to calculate its thermodynamic properties. Photodegradation and bacterial degradation of Pyr has been studied.

Price and Availability

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN1282 - class 3 - PG 2 - Pyridine
WGK Germany 
2
Flash Point(F) 
62.6 °F
Flash Point(C) 
17 °C

Documents

Certificate of Analysis

Certificate of Origin

Protocols & Articles

Articles

Determination of Water Content in Pyridine Using Karl Fischer Titration

Nitrogen compounds, acid amides and weakly basic amines (heterocyclenes) give no problems. They can be titrated according to the standard procedures. Strongly basic amines alter the pH value and must...
Keywords: Titrations

EPA Method 335.4 Product Selection Guide

This product selection guide is designed to simplify the ordering of products for EPA Method 335.4. This method is for the determination of total cyanide in various water and waste samples.

Knoevenagel Condensation Reaction

The Knoevenagel Condensation Reaction is a classic organic synthesis, described by Emil Knoevenagel in the 1890’s. The Knoevenagel reaction is a modified Aldol Condensation with a nucleophilic additi...
Keywords: Aldol condensation, C-C bond formation, Condensations, Dehydration reaction, Knoevenagel Condensation, Nucleophilic additions, Organic synthesis

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Peer-Reviewed Papers
15

References

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