Spectrophotometric estimation of metals with oxine- and 8-hydroxyquinaldine-chloroform extraction

Large Synergism of 3,5-Dichlorophenol in the Extraction of Gallium(III) with 2-Methyl-8-quinolinol Derivatives

“…6 2-Methyl-8-quinolinol (HMQ) is a useful analytical reagent available for the separation and determination of many metal ions in the presence of aluminium(III). 7,8 However, despite this advance, a few extraction constants have been determined, [9][10][11] and no detailed studies on the extraction equilibrium of gallium(III) with HMQ have been reported.…”

Synergistic Effect of 3,5-Dichlorophenol and Trioctylphosphine Oxide on the Extraction of Vanadium(V) with 2-Methyl-8-quinolinol Derivatives

“…3,4 In particular, 2-methyl-8-quinolinol (HMQ) is a useful analytical reagent available for the separation and determination of many metal ions in both the absence and presence of aluminium(III). 5,6 However, despite this advance, there are few reports [7][8][9] in which the extraction equilibria of metal ions with HA are mentioned in detail. Previously, we reported on a large synergism of 3,5-dichlorophenol (Hdcp) in the extraction of gallium(III) 10 and aluminium(III) 11 with 2-methyl-8-quinolinol derivatives (HA).…”

Large Extractability of Aluminium(III) with 2-Methyl-8-quinolinol Derivatives in the Presence of 3,5-Dichlorophenol

“…[1][2][3][4] The steric hindrance of the methyl group at the 2-position for aluminium(III) should make it difficult to form an extractable aluminium(III)-HMQ complex into an organic solvent from aqueous solution. 5 Therefore, HMQ has been used as a useful analytical reagent in the determination of various metal ions in the presence of aluminium(III).…”