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Citation: Fu Xiangkai*, He Mingqian, Zhou Chengbang, Zeng Guorong. THE MEASUREMANT OF THE ACIDITY FUNCTION H₀ OF PERFLUOROOCTANESULFONIC ACID[J]. Acta Physico-Chimica Sinica, ;1989, 5(04): 504-506. doi: 10.3866/PKU.WHXB19890425 shu

THE MEASUREMANT OF THE ACIDITY FUNCTION H₀ OF PERFLUOROOCTANESULFONIC ACID

1.
Department of Chemistry Southwest-China Teacher's University Chongqing; Sichuan

Received Date: 4 January 1988
Available Online: 15 August 1989

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).
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THE MEASUREMANT OF THE ACIDITY FUNCTION H₀ OF PERFLUOROOCTANESULFONIC ACID