Changes of Electrical and Structural Characteristics of Cold Sintered Potassium Dihydrogen Arsenate with Temperature
The electrical conductivity of the cold sintered salt KH2AsO4 has been investigated within temperature range from room temperature to about 500°C during multiple heating and cooling cycles. The reversibility of the dehydration process KH2AsO4 ⇄ β-KAsO3 has been established. The electrical characteristics were correlated with thermal and structural transformations. The unit cell dimensions of the β-KAsO3 phase were determined: ao= 14.092(5) Å, bo= 13.099(4) Å, Co = 8.891(2) Å, βo = 96.37(2)o and Vo = 1631(1) Å3.
KeywordsStructural Transformation Dehydration Process Unit Cell Dimension Open Atmosphere Investigate Temperature Range
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