Simultaneous tracking of sulfur species in the oxidation of thiourea by hydrogen peroxide

被引：39

作者：

Gao, Qingyu ^{[1
,2
,3
]}

Wang, Guangping ^{[3
]}

Sun, Yanyan ^{[3
]}

Epstein, Irving R. ^{[1
,2
]}

机构：

[1] Brandeis Univ, Dept Chem, Waltham, MA 02454 USA

[2] Brandeis Univ, Volen Ctr Complex Syst, Waltham, MA 02454 USA

[3] China Univ Min & Technol, Coll Chem Engn, Xuzhou 221008, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2008年 / 112卷 / 26期

关键词：

D O I：

10.1021/jp8003932

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We employ reversed-phase ion-pair high-performance liquid chromatography to quantitatively characterize the oxidation kinetics of thiourea oxidation by hydrogen peroxide. The HPLC technique makes it possible to monitor the concentrations of a variety of sulfur-containing species with different oxidation states and to elucidate the relative phase relations among them. The experimental results are in good agreement with simulations from an 8-step reaction mechanism.

引用

页码：5771 / 5773

页数：3

共 20 条

[1] SYSTEMATIC DESIGN OF CHEMICAL OSCILLATORS .25. COMPLEX DYNAMICAL BEHAVIOR IN A NEW CHEMICAL OSCILLATOR - THE CHLORITE THIOUREA REACTION IN A CSTR [J].

ALAMGIR, M ;

EPSTEIN, IR .

INTERNATIONAL JOURNAL OF CHEMICAL KINETICS, 1985, 17 (04) :429-439

[2] Redox buffering of hypochlorous acid by thiocyanate in physiologic fluids [J].

Ashby, MT ;

Carlson, AC ;

Scott, MJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (49) :15976-15977

[3] NONLINEAR DYNAMICS IN CHEMISTRY DERIVED FROM SULFUR CHEMISTRY .5. COMPLEX OLIGOOSCILLATORY BEHAVIOR IN THE REACTION OF CHLORITE WITH THIOCYANATE [J].

CHINAKE, CR ;

MAMBO, E ;

SIMOYI, RH .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (11) :2908-2916

[4] FINGERING PATTERNS AND OTHER INTERESTING DYNAMICS IN THE CHEMICAL WAVES GENERATED BY THE CHLORITE-THIOUREA REACTION [J].

CHINAKE, CR ;

SIMOYI, RH .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (15) :4012-4019

[5] DETERMINISTIC CHAOS ARISING FROM HOMOCLINICITY IN THE CHLORITE THIOUREA OSCILLATOR [J].

DOONA, CJ ;

BLITTERSDORF, R ;

SCHNEIDER, FW .

JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (28) :7258-7263

[6] KINETICS AND MECHANISM OF THE CHLORITE THIOUREA REACTION IN ACIDIC MEDIUM [J].

EPSTEIN, IR ;

KUSTIN, K ;

SIMOYI, RH .

JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (14) :5852-5856

[7] Oxidation and decomposition kinetics of thiourea oxides [J].

Gao, Qingyu ;

Liu, Bing ;

Li, Lianhe ;

Wang, Jichang .

JOURNAL OF PHYSICAL CHEMISTRY A, 2007, 111 (05) :872-877

[8]

GRIGOROVA B, 1986, J CHROMATOGR, V368, P444

[9] KINETICS AND MECHANISM OF OXIDATION OF THIOUREA AND N,N'-DIALKYLTHIOUREAS BY HYDROGEN-PEROXIDE [J].

HOFFMANN, M ;

EDWARDS, JO .

INORGANIC CHEMISTRY, 1977, 16 (12) :3333-3338

[10] Autocatalysis and self-inhibition:: Coupled kinetic phenomena in the chlorite-tetrathionate reaction [J].

Horváth, AK ;

Nagypál, I ;

Peintler, G ;

Epstein, IR .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (20) :6246-6247

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