Spectrophotometric study of reaction of sodium 6-hydroxy-5-dibenzo(<i>a,j</i>)phenoxazone-11,13-disulfonate with aluminium ions in the presence of cationoid tensides

Son, Nguyen Truong; Lasovský, Jan; Ružička, Eduard

doi:10.1135/cccc19801227

CCCC > Archive > 1980, Volume 45 > Issue 4 > p. 1227

Spectrophotometric study of reaction of sodium 6-hydroxy-5-dibenzo(a,j)phenoxazone-11,13-disulfonate with aluminium ions in the presence of cationoid tensides

Nguyen Truong Son^a, Jan Lasovský^b and Eduard Ružička^a

^a Department of Analytical and Organic Chemistry
^b Department of Inorganic and Physical Chemistry, Palacký University, 771 46 Olomouc

Abstract

In weakly acidic medium, pH 3.5-6.5, the title dye forms with aluminium ions a complex with the Al : L ratio 1 : 1. In the presence of cetylpyridinium or carbethoxypentadecyltrimethylammonium, ternary complexes AlL₃S_r (r = 6 or 9, respectively) are formed. The equilibrium constants of the complexing equilibria in the binary and ternary systems concerned were calculated, and a method of photometric determination of aluminium has been suggested.

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Spectrophotometric study of reaction of sodium 6-hydroxy-5-dibenzo(a,j)phenoxazone-11,13-disulfonate with aluminium ions in the presence of cationoid tensides

Abstract