物理化学学报 >> 1990, Vol. 6 >> Issue (01): 46-50.doi: 10.3866/PKU.WHXB19900108

研究论文 上一篇    下一篇

高压下氮气在正辛烷-异辛烷混合溶剂中的溶解度及某些物理化学性质

韩布兴;阎海科;胡日恒   

  1. 中国科学院化学研究所
  • 收稿日期:1988-07-15 修回日期:1989-03-02 发布日期:1990-02-15
  • 通讯作者: 阎海科

Solubilities of Nitrogen in Mixed Solvents of N-Octane and ISO-Octane at High Pressures

Han Bu-Xing;Yan Hai-Ke;Hu Ri-Heng   

  1. Institute of Chemistry,Academia Sinica,Beijing
  • Received:1988-07-15 Revised:1989-03-02 Published:1990-02-15
  • Contact: Yan Hai-Ke

摘要: 本文在20—130大气压范围内测定了20.0 ℃、39.6 ℃、54.6 ℃和70.0 ℃温度下氮气在正辛烷-异辛烷混合溶剂中的溶解度. 温度和溶剂组成一定条件下, 所测结果可用最小二乘法拟合成
Inx_(N_2)=A+Bp_(N_2)+Cp_(N_2)~2+Dlnp_(N_2)
的形式. 根据溶解度与压力的关系, 计算了氮在溶液中的偏摩尔体积和亨利常数。

Abstract: Solubilities of nitrogen in binary mixtures of n-octane and iso-octane have been measured over the temperature range of 20 to 70 ℃ and at pressures up to 130 atm. Experimental results can be fitted by the following equation
lnx_(N_2)=A+Bp_(N_2)+Cp_(N_2)~2+Dlnp
From the experimental results, the partial molar volume of dissolved nitrogen and the Henry's law constants have been calculated.