Mixing Liquids-Mission Impossible? A Colorful Demonstration on Immiscible Systems

• Autores: Jens Eckelmann, Ulrich Lüning
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 90, Nº 2, 2013, págs. 224-227
• Idioma: inglés
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• Resumen

  • Two demonstrations are presented that show the immiscibility of five or six layers of liquids. The setup of both demonstrations is such that one homogeneous layer in a multiphasic mixture separates into two new layers upon shaking. The solvents used are methanol, toluene, petroleum ether or n-pentane, silicone oil, perfluoroheptanes, and water for the five-layer demonstration. Addition of mercury results in a sixth phase.