THE ISOTOPIC EXCHANGE OF FLUOROBORIC ACID WITH HYDROFLUORIC ACID

被引：54

作者：

Anbar, M. ^{[1
]}

Guttmann, S. ^{[1
]}

机构：

[1] Weizmann Inst Sci, Dept Isotope, IL-76100 Rehovot, Israel

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1960年 / 64卷 / 12期

关键词：

D O I：

10.1021/j100841a021

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The rate of isotopic exchange of fluorine between fluoroboric and hydrofluoric acids has been investigated. The rate of exchange R = 4.5 x 10(4) e(-24,700/RT) [BF4-] [H+] l. mole(-1) sec.(-1). The exchange was found to proceed via HBF4 reversible arrow HF + BF3, BF3 + H2O reversible arrow HBF3OH followed by rapid isotopic equilibration between BF3OH- and HF. The mechanism of exchange was found identical with the mechanism of hydrolysis in acid medium. The non-acid hydrolysis of BF4- proceeds by a S(N)1 mechanism with a rate constant k = 8 x 10(6) e(-15,800/RT) sec.(-1).

引用

页码：1896 / 1899

页数：4

共 14 条

[1]

ANBAR M, 1960, ENDOCRINOLOGY, V66, P888

[2]

BASOLO F, 1958, MECH INORGANIC REACT, P97

[3] DETERMINATION OF THE FLUORIDE ION WITH FERRIC THIOCYANATE [J].

INGOLS, RS ;

SHAW, EH ;

EBERHARDT, WH ;

HILDEBRAND, JC .

ANALYTICAL CHEMISTRY, 1950, 22 (06) :799-803

[4]

Latimer W.M., 1952, J CHEM EDUC

[5]

MOELLER T, 1952, INORG CHEM, P314

[6]

RYSS IG, 1949, ZH OBSHCH KHIM+, V19, P1827

[7]

RYSS IG, 1955, ZH OBSHCH KHIM+, V25, P19

[8]

RYSS IG, 1949, ZH OBSHCH KHIM, V19, P1838

[9]

RYSS IG, 1947, DOKL AKAD NAUK SSSR, V57, P689

[10]

RYSS IG, 1946, DOKL AKAD NAUK SSSR, V52, P417

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