A rapid method for spectrophotometric determination of molybdenum in alloy steels

Keshavan, B. and Nagaraja, P. (1985) A rapid method for spectrophotometric determination of molybdenum in alloy steels. Mikrochimica Acta, 86 (5-6). pp. 379-387. ISSN 0026-3672

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Abstract

A Rapid Method for Spectrophotometric Determination of Molybdenum in Alloy Steels Molybdenum (VI) forms an orange-red coloured mixed-ligand complex with perazine dimalonate and thiocyanate at room temperature (27°) in hydrochloric acid. The complex is soluble in ethanol. It exhibits absorption maximum at 460 nm. Beer's law is valid over the molybdenum concentration range 0.1-14.0, μg/ml. Sandell's sensitivity of the reaction is 0.9·10-3μg Mo/cm2 and the molar extinction coefficient is 1.06·104 1·mol-1·cm-1 at 460 nm. The stoichiometry of the complex is (Perazine·H) MoO(SCN)4 as shown by Job's method, equilibrium shift method and elemental analyses of the isolated complex. The proposed method has been used for the determination of molybdenum in ores, alloy steels and in synthetic mixtures containing chromium, tungsten, iron, cobalt, nickel and copper. © 1986 Springer-Verlag.

Item Type: Article
Additional Information: Publisher: Springer-Verlag
Subjects: C Chemical Science > Chemistry
Divisions: Department of > Chemistry
Depositing User: Dhruva Kumar
Date Deposited: 18 May 2021 10:31
Last Modified: 18 May 2021 10:31
URI: http://eprints.uni-mysore.ac.in/id/eprint/13644

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