Acta Phys. -Chim. Sin. ›› 1991, Vol. 7 ›› Issue (01): 121-124.doi: 10.3866/PKU.WHXB19910122

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Study on Solubilities of Nitrogen in Mixed Solvents of N-Octane and N-Heptane at High Pressures

Han Bu-Xing; Yan Hai-Ke; Hu Ri-Heng   

  1. Institute of Chemistry, Academia Sinica, Beijing
  • Received:1989-08-21 Revised:1990-06-29 Published:1991-02-15
  • Contact: Yan Hai-Ke

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Abstract: Solubilities of nitrogen in binary mixtures of n-octane and n-heptane have been measured at temperatures from 20 to 70 ℃ and pressures up to 130 atm using a precision gas-liquid solubility apparatus. Experimental results can be expressed by the following equation
Inx_(N_2)=A+BP_(N_2)+CP_(N_2)~2+DInP
From the results obtained, the partial molar volume of dissolved nitrogen and the Henry's Law constants have also been calculated.

Key words: Mixed solvents of n-octane and n-heptane, Solubilities, Precision gas-liquid solubility apparatus