6533b823fe1ef96bd127e9fd

RESEARCH PRODUCT

Complexes of Azelaic and Diethylenetrioxydiacetic Acids with Na+, Mg2+, and Ca2+ in NaCl Aqueous Solutions, at 25 °C

Antonio GianguzzaConcetta De StefanoDaniela Piazzese

subject

chemistry.chemical_classificationAzelaic acidAqueous solutionGeneral Chemical EngineeringCarboxylic acidInorganic chemistryGeneral ChemistryGlass electrodelaw.inventionchemistryStability constants of complexeslawIonic strengthmedicineQualitative inorganic analysisMagnesium ionmedicine.drug

description

Formation constants of Na + , Mg 2+ , and Ca 2+ complexes of azelaic and diethylenetrioxydiacetic acids have been determined by potentiometry (H + -glass electrode) at different ionic strengths (0 ≤ I ≤ 1 mol dm -3 ), at t = 25 °C. For all the systems the species ML and MHL have been found. The relative formation constants are reported together with the parameters for the dependence on ionic strength. Results are discussed in comparison with those for other carboxylic ligands. Speciation problems are considered also.

yearjournalcountryeditionlanguage
1999-11-19Journal of Chemical & Engineering Data
https://doi.org/10.1021/je990156i