高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (6): 869.

• 论文 • 上一篇    下一篇

色谱保留值法测定碘和硫在超临界流体CO2中的溶解度

方瑞斌, 张世鸿, 张维昊   

  1. 云南大学化学系, 昆明, 650091
  • 收稿日期:1996-06-11 出版日期:1997-06-24 发布日期:1997-06-24
  • 通讯作者: 方瑞斌, 男, 39岁, 硕士, 副教授.
  • 作者简介:方瑞斌, 男, 39岁, 硕士, 副教授.
  • 基金资助:

    云南省自然科学基金

Determination of Solubilities of Iodine and Sulfur in Supercritical CO2 Using Chromatographic Retention Method

FANG Rui-Bin, ZHANG Shi-Hong, ZHANG Wei-Hao   

  1. Department of Chemistry, Yunnan University, Kunming, 650091
  • Received:1996-06-11 Online:1997-06-24 Published:1997-06-24

摘要: 用色谱保留值法测定了单质碘和单斜硫在不同温度及压力下在超临界二氧化碳中的溶解度,并用超临界平衡饱和萃取法验证了测定值,结果满意.

关键词: 碘, 单斜硫, 溶解度, 超临界二氧化碳

Abstract: Solubilities of iodine and monoclinic sulfur in supercritical CO2 with different pres-sures and temperatures were determined using chromatographic retention method- Solubility curves of iodine within 11-35 MPa pressure range at temperatures 313. 2, 318. 2, 323. 2,328.2 Kand monoclinic sulfur within 8.5-35 MPa pressure range at 308. 2, 318. 2, 328. 2 K, were described. Some of the results were compared with the date obtained from the methods of SFEspectrometric/gravimetric.

Key words: Iodine, Monoclinic sulfur, Solubility, Supercritical CO2

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