THERMAL-DECOMPOSITION OF CESIUM PERMANGANATE

被引:10
作者
GALWEY, AK [1 ]
MANSOUR, SAA [1 ]
机构
[1] MENIA UNIV,FAC SCI,DEPT CHEM,MENIA,EGYPT
关键词
D O I
10.1016/0040-6031(93)80305-T
中图分类号
O414.1 [热力学];
学科分类号
摘要
A kinetic study of the thermal decomposition of caesium permanganate confirms previous observations by P.J. Herley and E.G. Prout (J. Chem. Soc. (1959) 3300). Our scanning electron microscope, high magnification examination of the textures of product and of partially decomposed samples provides evidence that reaction is accompanied by melting. Accordingly we here reconsider the reaction mechanism and conclude that anion breakdown proceeds through electron transfer between anions 2MnO4- --> MnO42- + [MnO4] --> MnO42- + MnO2 + O2 within a local intracrystalline molten phase resulting from fusion of a (CsMnO4 + Cs2MnO4) eutectic.
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页码:379 / 392
页数:14
相关论文
共 12 条
[1]   MECHANISM OF THERMAL DECOMPOSITION OF POTASSIUM PERMANGANATE IN SOLID PHASE [J].
BOLDYREV, VV .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1969, 30 (05) :1215-&
[2]   ISOTHERMAL DSC STUDY OF THE THERMAL-DECOMPOSITION OF POTASSIUM-PERMANGANATE [J].
BROWN, ME ;
SOLE, KC ;
BECK, MW .
THERMOCHIMICA ACTA, 1985, 92 (SEP) :149-152
[3]  
Brown WE, 1980, COMPREHENSIVE CHEM K, V22
[4]   THE KINETICS AND MECHANISM OF THE THERMAL-DECOMPOSITION OF COPPER(II) MALONATE [J].
CARR, NJ ;
GALWEY, AK .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1986, 404 (1826) :101-&
[5]  
ERENBURG BG, 1972, RUSS J INORG CHEM, V17, P1121
[6]   A KINETIC AND MICROSCOPIC INVESTIGATION OF THE THERMAL DEHYDRATION OF LITHIUM-SULFATE MONOHYDRATE [J].
GALWEY, AK ;
KOGA, N ;
TANAKA, H .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1990, 86 (03) :531-537
[7]   THE DEVELOPMENT AND THE FUNCTION OF THE INTERFACE PARTICIPATING IN THE NUCLEATION AND GROWTH REACTION BETWEEN CRYSTALLINE POTASSIUM-BROMIDE AND CHLORINE GAS [J].
GALWEY, AK ;
POPPL, L .
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1984, 311 (1516) :159-+
[8]   THE THERMAL DECOMPOSITION OF IRRADIATED RUBIDIUM PERMANGANATE [J].
HERLEY, PJ ;
PROUT, EG .
JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1960, 16 (1-2) :16-22
[9]   THE THERMAL DECOMPOSITION OF COESIUM PERMANGANATE [J].
HERLEY, PJ ;
PROUT, EG .
JOURNAL OF THE CHEMICAL SOCIETY, 1959, (NOV) :3300-3303
[10]   KINETICS OF DECOMPOSITION OF POTASSIUM PERMANGANATE IN TEMPERATURE RANGE 110 TO 230 DEGREES C [J].
HILL, RAW ;
RICHARDS.RT ;
RODGER, BW .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1966, 291 (1425) :208-&