Moreno-Piraján Juan Carlos, Giraldo-Gutierréz Liliana
Grupo de Investigación en Sólidos Porosos y Calorimetría, Universidad de los Andes, Carrera 1 No. 18 A 10, Bogotá, Cundinamarca 01, Colombia.
Rev Sci Instrum. 2007 Apr;78(4):046105. doi: 10.1063/1.2727485.
In order to determine dissolution enthalpies of small amounts of easily or slightly soluble solids, a new cell for batch isoperibolic microcalorimetry was developed at the Universities of the Andes and the National of Colombia. An innovative mixing system for avoiding error due to the common effect of the brittle point breakage has been designed for this cell. The cell has a capacity of 40 ml and the sample holder can bear solid samples between 10.0 and 30.0 mg. The high stability of the base line allows solution experiments to be extended over several hours. All measurements reported were conducted at 298.15 K using water as solvent.
为了测定少量易溶或微溶固体的溶解焓，安第斯大学和哥伦比亚国立大学开发了一种用于间歇式等温微量热法的新型量热计。针对该量热计设计了一种创新的混合系统，以避免因脆点破裂的常见影响而产生误差。该量热计的容量为40毫升，样品架可承受10.0至30.0毫克的固体样品。基线的高稳定性使溶液实验能够延长数小时。所报告的所有测量均在298.15 K下使用水作为溶剂进行。
