The formation of 2-hydroxy-1,3-diaminopropane-N,N,N',N'-tetra-acetic acid silver and mercury(III) chelates.
The stability constants of mononuclear (1:1) and binuclear (2:1) chelates of the Ag-HDPTA and Hg(II)-HDPTA systems (HDPTA = 2-hydroxy-1,3-diaminopropane-N,N,N',N'-tetra-acetic acid) were evaluated from pM and pH data, using a method proposed earlier by Ringbom and the author. The determinations yielded the following stability constants (concentration): The use of the reagent for the analytical determination of silver and mercury(II) ions is also discussed.
Harju
L
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Department of Analytical Chemistry, Abo Akademi, 20500 Abo 50, Finland.