Ultraviolet Absorption Spectra of Nicotine, Nicotinamide, Pyridine and Aniline in Aliphatic Alcohols, Aqueous Methanols and Aqueous Media of Different pH

B. S. Bhat, P. C. Sindhi, Rehana Sanwari and C. V. Bhat

Department of Chemistry, University College of Science, Sukhadia University,  Udaipur - 313 001 India.

ABSTRACT:

The u. v. absorption specrta of nicotine, nicotinamide, pyridine and aniline show that the positigns of maximum absorption are affected only slightly by the change of alcohol and pH of the medium except for aniline at very low pH. The molar extinction coefficients show considerable effect of pH. The spectra of aniline are very sensisive to pH of the medium. Aniline shows an invariant point in its spectra in aqueous methanolic media. This can be successfully utilised for the estimation of aniline from aqueous methanolic media. All the four compounds obey the Beer-.Lambert's law facilitating their estimation in the media taken.

KEYWORDS:

Aniline; Aliphatic; Alcohols; Aqueous; Methanols; Aqueous; Media;Different

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Copy the following to cite this article: Bhat B. S, Sindhi P. C, Sanwari R, Bhat C. V. Ultraviolet Absorption Spectra of Nicotine, Nicotinamide, Pyridine and Aniline in Aliphatic Alcohols, Aqueous Methanols and Aqueous Media of Different pH. Orient J Chem 1986;2(1).

Copy the following to cite this URL: Bhat B. S, Sindhi P. C, Sanwari R, Bhat C. V. Ultraviolet Absorption Spectra of Nicotine, Nicotinamide, Pyridine and Aniline in Aliphatic Alcohols, Aqueous Methanols and Aqueous Media of Different pH. Orient J Chem 1986;2(1). Available from: http://www.orientjchem.org/?p=42349