A simplified measurement of hydrated crystal densities of low melting points (low transition points) by solidifications of aqueous solutions.
作者信息
Kajiwara Kazuhito, Yabe Kazuyoshi, Hashitani Takusei
机构信息
Department of Biosciences, Teikyo University of Science and Technology, Yamanashi, Japan.
出版信息
Cryo Letters. 2003 May-Jun;24(3):143-8.
PMID:12908024
Abstract
A volume change method for measuring crystal densities is described. It allows the densities of unstable hydrated crystals at room temperature to be determined, by measurements of volume changes during the solidification of aqueous solutions. NaCl x 2H2O, KCl, MgSO4 x 12H2O and K2HPO4 x 6H2O were measured by the method and their densities (SE) are 1.61+/-0.02, 1.99+/-0.05, 1.45+/-0.01 and 1.75+/-0.02 g ml(-1) respectively. Data of NaCl x 2H2O and KCl are in good agreement with the previously reported values.
摘要
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