58256-65-8

Basic information

• Product Name: pyridine N-oxide perchlorate
• Synonyms: pyridine N-oxide perchlorate
• CAS NO: 58256-65-8
• Molecular Weight: 195.559
• Mol File: 58256-65-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: pyridine N-oxide perchlorate(CAS DataBase Reference)
• NIST Chemistry Reference: pyridine N-oxide perchlorate(58256-65-8)
• EPA Substance Registry System: pyridine N-oxide perchlorate(58256-65-8)

Safety Data

• Hazardous Substances Data: 58256-65-8(Hazardous Substances Data)

Upstream product

• 32709-07-2 hydride-bis-pyridine N-oxide perchlorate 

Downstream Products

• 694-59-7 pyridine N-oxide 

Relevant articles and documents

UV-Spectroscopic Study of the Influence of Traces of Water on the Protolytic Equilibria of Substituted Pyridine N-Oxides in Aprotic Solvents

Using a UV-spectrophotometric method, an attempt has been made to estimate quantitatively the influence of traces of water in aprotic solvents on the acidic-basic equilibria involving heterocyclic N-oxides.The N-oxides under study were pyridine N-oxide, (PyO), 4-methoxy-pyridine N-oxide (4-MeOPyO), and 2-, 3-, and 4-picoline N-oxide (2-, 3-, and 4-PicO).For particular N-oxide the UV-spectra of acetonitrile solutions containing the free base and/or its simple or semiperchlorate have been recorded.To carry out the calculations various equilibrium models which include the protolytic equilibrium with water and basic species present in the solvent have been tested using the program STOICHO which is based on nonlinear regression analysis.It turned out that apart from the acidic-basic dissociation of a protonated N-oxide and cationic homoconjugation (the equilibria which are usually considered in such systems) it is absolutely necessary to take into account the protolytic equilibria between the cationic acid and water present as impurity.Implications concerning investigations of other equilibrium systems in aprotic solvents and, in particular, the quality of the acidity constants for the calibration agents used in potentiometry are discussed.