物理化学学报 >> 1989, Vol. 5 >> Issue (04): 504-506.doi: 10.3866/PKU.WHXB19890425

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全氟辛基磺酸酸度函数H0的测定

傅相锴; 贺明谦; 周承邦; 曾国蓉   

  1. 西南师范大学化学系; 四川重庆
  • 收稿日期:1988-01-04 修回日期:1988-07-19 发布日期:1989-08-15
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THE MEASUREMANT OF THE ACIDITY FUNCTION H0 OF PERFLUOROOCTANESULFONIC ACID

Fu Xiangkai*; He Mingqian; Zhou Chengbang; Zeng Guorong   

  1. Department of Chemistry Southwest-China Teacher's University Chongqing; Sichuan
  • Received:1988-01-04 Revised:1988-07-19 Published:1989-08-15
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Abstract: It is reported in this paper that the acidity function H_0 of perfluorooctanesulfonic acid (POSA) is -12.11±0.03, which was measured first time by ~1H NMR method, in term of the α-H chemical shifts of the acid-ether systems, using 98% to 100% H_2SO_4 as reference standards. This method provides a new procedure for measuring the H_0 value of solid perfluoroalkanesulfonie acid C_nH_(2n+1)SO_3H(n>7).