XX.—The influence of different oxides on the decomposition of potassium chlorate

Fowler, Gilbert J; Grant, J.

doi:10.1039/ct8905700272

Cited by 3 publications

(2 citation statements)

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“…where Cl~is formed according to reaction (5). Hence, since we observed no chlorine formation it is reasonable to conclude that no diuranate is formed under our conditions.…”

Section: Resultssupporting

confidence: 46%

Oxidation of powder and ceramic UO2 by KClO3 in molten (Li–Na–K)2CO3 eutectic

Volkovich¹,

Griffiths²,

Fray³

et al. 1998

Faraday Trans.

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“…where Cl~is formed according to reaction (5). Hence, since we observed no chlorine formation it is reasonable to conclude that no diuranate is formed under our conditions.…”

Section: Resultssupporting

confidence: 46%

Oxidation of powder and ceramic UO2 by KClO3 in molten (Li–Na–K)2CO3 eutectic

Volkovich¹,

Griffiths²,

Fray³

et al. 1998

Faraday Trans.

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“…The decomposition accelerating effects due to the presence of base in MC103 and MC104 melts had been previously noted for KC104,17,19 NaC104 and NaC103,23 and KC103. 24 The promotion of LiC104 pyrolysis by Li20 was further demonstrated in some isothermal experiments. Thus, samples containing 90 wt.…”

mentioning

confidence: 86%

The Differential Thermal Analysis of Perchlorates. VII. Catalytic Decompositions of the Alkali Metal Perchlorates by Manganese Dioxide

Markowitz¹,

Boryta²

1965

J. Phys. Chem.

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The thermal stabilities of the pure alkali metal perchlorates (MCIOI) and of admixtures with 10 mole % RhOz catalyst follow the order Li < Na < K, Rb, Cs. For both pure and catalyst-containing materials, rapid decomposition is preceded by liquid phase formstion. Analyses of molten perchlorates near their fusion temperatures show that fusion is coincident with decomposition except for LiClO, which has a congruent melting point; the simultaneous occurrence of fusion and decomposition is in contrast to the behavior manifested by RIC103 salts, each of which possesses a congruent melting point and a significant range of liquid phase stability. Catalysis of Mc101 pyrolysis by basic substances yielding 02ion, in conjunction with other evidence, suggests the presence of 0 atoms in decomposing perchlorates. A proposed mechanism for Clz evolution from lIC104 melts (order of extent of Clz release: Li >> Xa > K > Rb, Cs = 0) stipulates an autoionization equilibrium of the type C104-4 c103+ + 02-, so that Clz release occurs through the reaction Clod-+ ClO3+ -+ [C1207] -+ Clz + 7/z02. Such a scheme removes acidic oxides (e.g., P206, B203, W03, Moo3, etc.) from consideration as true catalysts inasmuch as they function by removal of oxide ions and hence undergo specific, irreversible reactions with RIC104 salts. In this regard, MnOZ is primarily a true catalytic agent for MC104 decomposition, but it also does appear to undergo a small amount of chemical reaction with LiClO,, in particular, to foster Clz evolution, viz., LiC104 + MnOz 4 Li?tfnOz + l/zClz + 2OZ.(1) "Gmelins Handbuch der anorganischen Chemie," 8 Auflage, System No. 6, "Chlor," Verlag Chemie, G.m.b.h., Berlin, 1926, pp.

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A review of the high temperature oxidation of uranium oxides in molten salts and in the solid state to form alkali metal uranates, and their composition and properties

Griffiths

Volkovich

1999

Journal of Nuclear Materials

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XX.—The influence of different oxides on the decomposition of potassium chlorate

Cited by 3 publications

References 0 publications

Oxidation of powder and ceramic UO2 by KClO3 in molten (Li–Na–K)2CO3 eutectic

Oxidation of powder and ceramic UO2 by KClO3 in molten (Li–Na–K)2CO3 eutectic

The Differential Thermal Analysis of Perchlorates. VII. Catalytic Decompositions of the Alkali Metal Perchlorates by Manganese Dioxide

A review of the high temperature oxidation of uranium oxides in molten salts and in the solid state to form alkali metal uranates, and their composition and properties

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