NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.14 [2007] >
IJCT Vol.14(2) [March 2007] >


Title: Complexometric determination of mercury(II) using 2-thiobarbituric acid as a releasing agent
Authors: Karthikeyan, J
Parameshwara, P
Shetty, A Nityananda
Shetty, Prakash
Keywords: Mercury(II) determination
2-Thiobarbituric acid
Masking reagent
Complexometric titration
EDTA
Issue Date: Mar-2007
Publisher: CSIR
IPC CodeC22B43/00, B01
Abstract: A simple and selective complexometric method for the deter-mination of mercury is proposed, based on the selective releasing ability of 2-thiobarbituric acid towards mercury(II). Mercury(II) present in a given sample solution is first complexed with an ex-cess of EDTA and the unreacted EDTA is titrated against zinc sulphate solution at pH 5-6 (hexamine buffer) using xylenol orange as the indicator. An excess of a 0.25% solution of 2-thiobarbituric acid is then added to displace EDTA from the Hg(II)-EDTA complex. The released EDTA is estimated. Repro-ducible and accurate results are obtained for 3-95 mg of mer-cury(II) with coefficient of variation not more than 0.34%. The effects of various ions were studied. The method is used for the analysis of mercury in its synthetic alloy mixtures and also in complexes.
Page(s): 209-211
ISSN: 0971–457X
Source:IJCT Vol.14(2) [March 2007]

Files in This Item:

File Description SizeFormat
IJCT 14(2) (2007) 209-211.pdf42.99 kBAdobe PDFView/Open
 Current Page Visits: 545 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 513355 since 06-Feb-2009  Last updated on 21-Apr-2014Webmaster: nopr@niscair.res.in