Phase Diagram for Binary Mixture of Sterols: 5-cholesten-3β-ol, 5α-cholestan-3β-ol, 5β-cholestan-3α-ol and 5β-cholestan-3β-ol
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- MINAMI Hideyuki
- Department of Chemistry, School of Science, Kitasato University
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- SAKAMOTO Yukari
- Department of Chemistry, School of Science, Kitasato University
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- IWAHASHI Makio
- Department of Chemistry, School of Science, Kitasato University
書誌事項
- タイトル別名
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- Phase Diagram for Binary Mixture of Sterols: 5-cholesten-3.BETA.-ol, 5.ALPHA.-cholestan-3.BETA.-ol, 5.BETA.-cholestan-3.ALPHA.-ol and 5.BETA.-cholestan-3.BETA.-ol.
- Phase Diagram for Binary Mixture of Sterols 5 cholesten 3 ベータ ol 5 アルファ cholestan 3 ベータ ol 5 ベータ cholestan 3 アルファ ol and 5 ベータ cholestan 3 ベータ ol
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Phase diagrams for binary mixtures of sterols such as 5-cholesten-3β-ol (I), 5α-cholestan-3β-ol (II), 5β-cholestan-3α-ol (III) and 5β-cholestan-3β-ol (IV) were studied. II is similar to I in its straight, plank-like skeletal structure and in the direction of OH moiety linking directly to the steroid ring. III is similar to IV in its bending skeletal structure and differs in the direction of OH moiety from I, II and IV. From phase diagrams for all of their binary mixtures, it became clear that in I/II and also in II/IV systems the molecules of each component are phase-separated from each other in the solid state and provide a eutectic mixture. In I/III, II/III and III/IV systems, two kinds of molecules whose OH moieties are in opposite directions to each other made a 1:1 compound. On the other hand, in I/IV system I and IV molecules made an incongruent melting (peritectic) compound, which was less stable and, before its melting, decomposed into solid I and a 1:1-molar-ratio solution of I and IV at 373 K.
収録刊行物
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- Journal of Oleo Science
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Journal of Oleo Science 51 (1), 11-17, 2002
公益社団法人 日本油化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679067911808
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- NII論文ID
- 130000059505
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- NII書誌ID
- AA11503337
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- COI
- 1:CAS:528:DC%2BD38Xpt1yk
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- ISSN
- 13473352
- 13458957
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- NDL書誌ID
- 6017005
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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