{"id":2595,"date":"2014-09-15T05:34:00","date_gmt":"2014-09-15T05:34:00","guid":{"rendered":"https:\/\/chempublishers.com\/pjc\/?p=2595"},"modified":"2025-06-14T06:39:07","modified_gmt":"2025-06-14T06:39:07","slug":"pjc-1814","status":"publish","type":"post","link":"https:\/\/chempublishers.com\/Pakistan-journal-of-chemistry\/2014\/09\/15\/pjc-1814\/","title":{"rendered":"Hg (II) Catalysed Oxidation of D-Arabinose and D-Mannose by Acidic Solution of Potassium Permanganate: Kinetics and Mechanism"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2595\" class=\"elementor elementor-2595\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fbe7981 e-flex e-con-boxed e-con e-parent\" data-id=\"fbe7981\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-449cb7c e-con-full e-flex e-con e-child\" data-id=\"449cb7c\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d20ee05 elementor-widget elementor-widget-text-editor\" data-id=\"d20ee05\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<table border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\" align=\"center\">\n<tbody>\n<tr>\n<td>\n<div><strong>Research Article | Open Access<\/strong><\/div>\n<div class=\"item doi\"><span class=\"value\">Volume 4 | Issue 3 |&nbsp;<a href=\"https:\/\/chempublishers.com\/Pakistan-journal-of-chemistry\/wp-content\/uploads\/sites\/2\/2025\/01\/PJC-v04.i03.p04.pdf\" target=\"_blank\" rel=\"noopener\">https:\/\/doi.org\/10.15228\/2014.v04.i03.p04<\/a><\/span><\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<article class=\"obj_article_details\">\n<h4>Hg (II) Catalysed Oxidation of D-Arabinose and D-Mannose by Acidic Solution of Potassium Permanganate: Kinetics and Mechanism<\/h4>\n<div class=\"row\">\n<div class=\"main_entry\">\n<p><span class=\"name\">R. Naz<\/span><\/p>\n<p>Department of Chemistry, University of Karachi, 75270, Karachi, Pakistan<\/p>\n<p><span class=\"name\">R. Azmat<\/span><\/p>\n<p>Department of Chemistry, University of Karachi, 75270, Karachi, Pakistan<\/p>\n<p><span class=\"name\">N. Qamar<\/span><\/p>\n<p>Department of Chemistry, Jinnah University for Women, 74600 Karachi, Pakistan<\/p>\n<p><span class=\"name\">N.I. Siddiqi<\/span><\/p>\n<p>HEJ Research Institute, University of Karachi, Karachi, Pakistan<\/p>\n<p><\/p>\n<table border=\"0\" width=\"93%\" cellspacing=\"0\" cellpadding=\"0\" align=\"center\">\n<tbody>\n<tr>\n<td align=\"center\" valign=\"top\"><strong>Received<\/strong><br>05 Mar, 2014<\/td>\n<td align=\"center\" valign=\"top\"><strong>Accepted<\/strong><br>24 Sep, 2014<\/td>\n<td align=\"center\" valign=\"top\"><strong>Published<\/strong><br>09 Dec, 2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"item abstract\">\n<p class=\"ql-align-justify\">The kinetics of Hg (II) catalyzed oxidation of D-Arabinose (Ara) and D-Mannose (Man) by potassium permanganate in acidic medium have been studied spectrophotometrically in the temperature range 30-50oC. The reactions exhibit first order kinetics with respect to [Man] and [MnO<sub>4<\/sub>] while second order with [Ara]. The reaction rates were found to be unaffected by the change in [H<sup>+<\/sup>&nbsp;]. It has been observed that Hg (II) catalyzed the reaction but as the [Hg(II)] increases, reaction rate becomes independent. Negligible effect of ionic strength (\u03bc) on the rate of oxidation has also been noted which supports the presence of at least one neutral specie in the rate determining step. The rate of oxidation was influenced by the change in temperature. Various activation parameters have been calculated. Formic acid and erythronic acid were identified as main oxidation product in case of arabinose while for mannose formic acid and arabinonic acid were identified. A mechanism consistent with the above findings has also been proposed.<\/p>\n<\/div>\n<div class=\"item abstract\">\n<div>\n<h3 class=\"label\">How to Cite this paper?<\/h3>\n<div class=\"csl-entry\">\n<p><strong>APA-7 Style<\/strong><br>Naz, R., Azmat, R., Qamar, N., Siddiqi, N.I. (2014). Hg (II) Catalysed Oxidation of D-Arabinose and D-Mannose by Acidic Solution of Potassium Permanganate: Kinetics and Mechanism.&nbsp;<a href=\"https:\/\/chempublishers.com\/Pakistan-journal-of-chemistry\/wp-content\/uploads\/sites\/2\/2025\/01\/PJC-v04.i03.p04.pdf\" target=\"_blank\" rel=\"noopener\"><em>Pakistan Journal of Chemistry<\/em>, 4(3), 116-123<\/a>. https:\/\/doi.org\/10.15228\/2014.v04.i03.p04<\/p>\n<p><strong>ACS Style<\/strong><br>Naz, R.; Azmat, R.; Qamar, N.; Siddiqi, N.I. Hg (II) Catalysed Oxidation of D-Arabinose and D-Mannose by Acidic Solution of Potassium Permanganate: Kinetics and Mechanism.&nbsp;<a href=\"https:\/\/chempublishers.com\/Pakistan-journal-of-chemistry\/wp-content\/uploads\/sites\/2\/2025\/01\/PJC-v04.i03.p04.pdf\" target=\"_blank\" rel=\"noopener\"><em>Pak. J. Chem.<\/em>&nbsp;2014, 4, 116-123<\/a>. https:\/\/doi.org\/10.15228\/2014.v04.i03.p04<\/p>\n<p><strong>AMA Style<\/strong><br>Naz R, Azmat R, Qamar N, Siddiqi NI. Hg (II) Catalysed Oxidation of D-Arabinose and D-Mannose by Acidic Solution of Potassium Permanganate: Kinetics and Mechanism.&nbsp;<a href=\"https:\/\/chempublishers.com\/Pakistan-journal-of-chemistry\/wp-content\/uploads\/sites\/2\/2025\/01\/PJC-v04.i03.p04.pdf\" target=\"_blank\" rel=\"noopener\"><em>Pakistan Journal of Chemistry<\/em>. 2014; 4(3): 116-123<\/a>. https:\/\/doi.org\/10.15228\/2014.v04.i03.p04<\/p>\n<p><strong>Chicago\/Turabian Style<\/strong><br>Naz, R., R. Azmat, N. Qamar, and N. I. Siddiqi. 2014. &#8220;Hg (II) Catalysed Oxidation of D-Arabinose and D-Mannose by Acidic Solution of Potassium Permanganate: Kinetics and Mechanism&#8221;&nbsp;<a href=\"https:\/\/chempublishers.com\/Pakistan-journal-of-chemistry\/wp-content\/uploads\/sites\/2\/2025\/01\/PJC-v04.i03.p04.pdf\" target=\"_blank\" rel=\"noopener\"><em>Pakistan Journal of Chemistry<\/em>&nbsp;4, no. 3: 116-123<\/a>. https:\/\/doi.org\/10.15228\/2014.v04.i03.p04<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"item copyright\">\n<p><a href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\" rel=\"license\"><img decoding=\"async\" src=\"https:\/\/i.creativecommons.org\/l\/by\/4.0\/88x31.png\" alt=\"Creative Commons License\"><\/a><\/p>\n<p>This work is licensed under a&nbsp;<a href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\" rel=\"license\">Creative Commons Attribution 4.0 International License<\/a>.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/article>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e846d4a e-con-full e-flex e-con e-child\" data-id=\"e846d4a\" data-element_type=\"container\">\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Research Article | Open Access Volume 4 | Issue 3 |&nbsp;https:\/\/doi.org\/10.15228\/2014.v04.i03.p04 Hg (II) Catalysed Oxidation of D-Arabinose and D-Mannose by Acidic Solution of Potassium Permanganate: Kinetics and Mechanism R. Naz Department of Chemistry, University of Karachi, 75270, Karachi, Pakistan R. Azmat Department of Chemistry, University of Karachi, 75270, Karachi, Pakistan N. Qamar Department of Chemistry, [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2595","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Hg (II) Catalysed Oxidation of D-Arabinose and D-Mannose by Acidic Solution of Potassium Permanganate: Kinetics and Mechanism - Pakistan Journal of Chemistry<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/chempublishers.com\/Pakistan-journal-of-chemistry\/2014\/09\/15\/pjc-1814\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hg (II) Catalysed Oxidation of D-Arabinose and D-Mannose by Acidic Solution of Potassium Permanganate: Kinetics and Mechanism - Pakistan Journal of Chemistry\" \/>\n<meta property=\"og:description\" content=\"Research Article | Open Access Volume 4 | Issue 3 |&nbsp;https:\/\/doi.org\/10.15228\/2014.v04.i03.p04 Hg (II) Catalysed Oxidation of D-Arabinose and D-Mannose by Acidic Solution of Potassium Permanganate: Kinetics and Mechanism R. 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