
%0 Journal Article
%A Powell, HKJ 
%A Town, RM 
%T Aluminum(III)-Malonate Equilibria: a Potentiometric Study
%J Australian Journal of Chemistry
%D 1993/05/01
%V 46
%N 5
%P 721-726
%K 
%R https://doi.org/10.1071/CH9930721
%U https://www.publish.csiro.au/paper/CH9930721 
%X The aluminium(III)-malonic acid (H2L) equilibria have been studied by potentiometric titration in aqueous solution at 25&#176;C (I = 0.10 M KCl ). Data were consistent with the formation of simple binary complexes AlL + (log K1 = 6.711), AlL2- (log K2 = 4.815) and AlL33- (log&#946;3 = 14.104) in the pH range 2.2-5.5. There was also evidence for a minor species AlL2(OH)2- at pH > 5.8 for solutions with [Al3+]:[LH2] < 3.0 (log KD= -6.68). The protonation constants determined for malonic acid were log K1 = 5.43 and log K2 = 2.60 (corrected for K+ ion pairing). 
