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Liquid-liquid Distribution of Ion Associates of Hexabromotellurate (IV) With Quaternary Ammonium Counter Ions

Liquid-liquid Distribution of Ion Associates of Hexabromotellurate (IV) With Quaternary Ammonium Counter Ions

K Yamamoto, K Adachi

Talanta. 1998 Dec;47(5):1065-9.

PMID: 18967410

Abstract:

The distribution behavior of ion associates (Q(+))(2). TeBr(6)(2-) of TeBr(6)(2-) with quaternary ammonium cations (Q(+)) between aqueous phase and two organic phases (1,2-dichloroethane (DCE) and chloroform (CF)) was examined, and the extraction constants (log K(ex)) were determined. The extractability with long-chain alkyltrimethylammonium cations (group I) is greater than that with symmetrical tetraalkylammonium cations (group II) in the 1,2-dichloroethane extraction system and the difference in log K(ex) for two cations (one of each type) with the same number of carbon atoms was about 3 on the average. The contributions of a methylene group in the cations of groups I and II to log K(ex) were found to be 0.43 approximately 1.10 and about 0.74 on the average. Among the ion associates examined, the extractability of the extracting solvent was in the DCE>CF; the difference in log K(ex) was about 5 on the average.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP16925352	Ammonium hexabromotellurate(IV)		16925-35-2	Price

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