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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 7, Number 1
February 20, 1963 

The Interaction of Gallium Bromide with Ethyl Bromide in Nitrobenzene and in 1,2,4-Trichlorobenzene
Sang Up Choi
The solubility of ethyl bromide in nitrobenzene and in 1,2,4-trichlorobenzene has been measured at 19° in the presence and absence of gallium bromide. When gallium bromide does not exist in the system, the solubility of ethyl bromide in nitrobenzene is greater than in 1,2,4-trichlorobenzene, indicating the stronger interaction of ethyl bromide with nitrobenzene than with 1,2,4-trichlorobenzene. When there exists gallium bromide in the system, an unstable 1: 1 complex, C2H5Br·GaBr3, of gallium bromide with ethyl bromide is formed in the solution. The 1: 1 complex in solution dissociates into the components to a large extent according to one of the following equilibria or both: C2H5Br·GaBr3 ↔ C2H5Br+GaBr3 C2H5Br·GaBr3 ↔ C2H5Br+1/2 Ga2Br3 The stability of the 1: 1 complex of ethyl bromide with gallium bromide is compared with that of the corresponding complex of methyl bromide.
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