2-(4-Diethylaminostyryl)-1,3,3-trimethyl-5-thiocyanato-3H-indolium chloride as a new reagent for indirect spectrophotometric red-ox determination of Osmium (VI)

Zholt Kormosh; Svitlana Korolchuk

doi:10.2478/v10026-008-0022-6

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2-(4-Diethylaminostyryl)-1,3,3-trimethyl-5-thiocyanato-3H-indolium chloride as a new reagent for indirect spectrophotometric red-ox determination of Osmium (VI)

Green Sciences

Volume 10 (2008): Issue 2 (June 2008)

By: Zholt Kormosh and Svitlana Korolchuk

Open Access

|Jul 2008

Abstract

A highly sensitive indirect spectrophotometric redox method for the determination of osmium is reported on. The method is based on the oxidation of iodide by osmium (VI) and the spectrophotometric detection of the liberated iodine in the form of complex anion associate with 2-(4-diethylaminostyryl)-1,3,3-trimethyl-5-thiocyanato-3H-indolium chloride reagent. The appropriate reaction conditions have been established. The molar absorptivity is (0.2-1.2)·10⁵ dm³/mol·cm at 589.5 nm wavelength. The absorbance of the coloured extracts obeys the Beer's law in the range to 7.6 mg/dm³ of Os(VI).

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Articles in this issue

DOI: https://doi.org/10.2478/v10026-008-0022-6 | Journal eISSN: 3072-0389

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Language: English

Page range: 17 - 19

Published on: Jul 2, 2008

Published by: West Pomeranian University of Technology, Szczecin

In partnership with: Paradigm Publishing Services

Publication frequency: Volume open

Keywords:

Osmium,

determination,

spectrophotometry

Related subjects:

Industrial chemistry,

Biotechnology,

Chemical engineering,

Process engineering

© 2008 Zholt Kormosh, Svitlana Korolchuk, published by West Pomeranian University of Technology, Szczecin
This work is licensed under the Creative Commons License.

Volume 10 (2008): Issue 2 (June 2008)