Mechanochemical reactions of alkali metal-halides-The systems AX/BX/(H2O) with A, B = Na, K, Rb, Cs and X = Cl, Br, I

Ingrid Severin; Hans J. Seifert; Shmuel Yariv

doi:10.1016/0022-4596(90)90234-O

Mechanochemical reactions of alkali metal-halides-The systems AX/BX/(H₂O) with A, B = Na, K, Rb, Cs and X = Cl, Br, I

Ingrid Severin
, Hans J. Seifert^*
, Shmuel Yariv

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Solid solutions (K, Rb)X with X = Cl, Br, I are obtained by grinding mixtures of KX and RbX in a ball mill. The reaction can be accelerated by adding a small amount of water. When grinding CsCl and NaCl or CsBr and NaBr together with a stoichiometric amount of water in the ratio 1:2:2 double salts Cs(Na · H₂O)₂X₃ (X = Cl, Br) are obtained. Above 40°C or 70°C, respectively they are partially dehydrated, yielding solid solutions Cs_1-x(Na · H₂O)_xX. For both phases the enthalpies of formation from the binary halides were measured by solution calorimetry. They are negative.

Original language	English
Pages (from-to)	401-405
Number of pages	5
Journal	Journal of Solid State Chemistry
Volume	88
Issue number	2
DOIs	https://doi.org/10.1016/0022-4596(90)90234-O
State	Published - Oct 1990

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title = "Mechanochemical reactions of alkali metal-halides-The systems AX/BX/(H2O) with A, B = Na, K, Rb, Cs and X = Cl, Br, I",

abstract = "Solid solutions (K, Rb)X with X = Cl, Br, I are obtained by grinding mixtures of KX and RbX in a ball mill. The reaction can be accelerated by adding a small amount of water. When grinding CsCl and NaCl or CsBr and NaBr together with a stoichiometric amount of water in the ratio 1:2:2 double salts Cs(Na · H2O)2X3 (X = Cl, Br) are obtained. Above 40°C or 70°C, respectively they are partially dehydrated, yielding solid solutions Cs1-x(Na · H2O)xX. For both phases the enthalpies of formation from the binary halides were measured by solution calorimetry. They are negative.",

author = "Ingrid Severin and Seifert, \{Hans J.\} and Shmuel Yariv",

year = "1990",

month = oct,

doi = "10.1016/0022-4596(90)90234-O",

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journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

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T1 - Mechanochemical reactions of alkali metal-halides-The systems AX/BX/(H2O) with A, B = Na, K, Rb, Cs and X = Cl, Br, I

AU - Severin, Ingrid

AU - Seifert, Hans J.

AU - Yariv, Shmuel

PY - 1990/10

Y1 - 1990/10

N2 - Solid solutions (K, Rb)X with X = Cl, Br, I are obtained by grinding mixtures of KX and RbX in a ball mill. The reaction can be accelerated by adding a small amount of water. When grinding CsCl and NaCl or CsBr and NaBr together with a stoichiometric amount of water in the ratio 1:2:2 double salts Cs(Na · H2O)2X3 (X = Cl, Br) are obtained. Above 40°C or 70°C, respectively they are partially dehydrated, yielding solid solutions Cs1-x(Na · H2O)xX. For both phases the enthalpies of formation from the binary halides were measured by solution calorimetry. They are negative.

AB - Solid solutions (K, Rb)X with X = Cl, Br, I are obtained by grinding mixtures of KX and RbX in a ball mill. The reaction can be accelerated by adding a small amount of water. When grinding CsCl and NaCl or CsBr and NaBr together with a stoichiometric amount of water in the ratio 1:2:2 double salts Cs(Na · H2O)2X3 (X = Cl, Br) are obtained. Above 40°C or 70°C, respectively they are partially dehydrated, yielding solid solutions Cs1-x(Na · H2O)xX. For both phases the enthalpies of formation from the binary halides were measured by solution calorimetry. They are negative.

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JO - Journal of Solid State Chemistry

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IS - 2

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Mechanochemical reactions of alkali metal-halides-The systems AX/BX/(H₂O) with A, B = Na, K, Rb, Cs and X = Cl, Br, I

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