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|Section2= |Section7= |Section8= }} Decalin (decahydronaphthalene, also known as bicyclo()decane), a bicyclic organic compound, is an industrial solvent. A colorless liquid with an aromatic odor, it is used as a solvent for many resins or fuel additives. It is the saturated analog of naphthalene and can be prepared from it by hydrogenation in a fused state in the presence of a catalyst. Decahydronaphthalene easily forms explosive organic peroxides upon storage in the presence of air. == Isomers == Decahydronaphthalene occurs in cis and trans forms. The trans form is energetically more stable because of fewer steric interactions. ''Cis''-decalin is a chiral molecule without a chiral center; it has a two-fold rotational symmetry axis going through the center of the 1-6 bond, but no reflective symmetry. However, the chirality is canceled through a chair-flipping process that turns the molecule into its mirror image. Image:Cis-trans isomerism of decahydronaphthalene.png| Image:Cis-decalin-3D-balls.png|2: Image:Trans-decalin-3D-balls.png|3: File:Cisdecalin conformations.png|4: 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「decalin」の詳細全文を読む スポンサード リンク
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