Studies of the aqueous solutions of guanidinium salts. VI. Complexes of guanidinium halides and symmetrical tetraalkylammonium halides.

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概要

• 論文の詳細を見る

• Guanidinium halides (bromide and chloride) form crystalline complexes with symmetrical tetraalkylammonium bromides (tetraethyl-, tetrapropyl-, and tetrabutylammonium bromides and tetrabutylammonium chloride) in aqueous solutions at room temperature. These complexes were analyzed and found to be either binary complexes of two kinds of salts or ternary complexes with water as a third component. Each complex showed complicated peaks in the DSC measurements, which indicated the phase transition in the solid state. The solubility of each salt in ternary systems was measured, and phase diagrams were constructed for some of the ternary systems. A mutual salting- in effect was observed in all the ternary systems, and this effect was discussed in terms of complex formation and the structual change of water.

• 公益社団法人 日本化学会の論文

著者

• Miyajima Koichiro

  Faculty Of Pharmaceutical Science Kyoto University

• Nakagaki Masayuki

  Faculty of Living Science Osaka City University

• Yoshida Hiromitsu

  Faculty of Pharmaceutical Sciences of Kyoto University

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