The synthesis and characterization of iron(II) fumarate and its inclusion complexes with cyclodextrins

Autor: Kapor, Agneš J., Nikolić, Ljubiša B., Nikolić, Vesna D., Stanković, Mihajlo Z., Cakić, Milorad D., Ilić, Dušica P., Mladenović-Ranisavljević, Ivana I., Ristić, Ivan S.
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Savremene tehnologije (2012) 1(1):7-15
ISSN: 2217-9712
Popis: This paper presents a synthesis of iron(II) fumarate based on the conversion of fumaric acid into disodium fumarate in molar ratio of 1:2 by the neutralization process. Disodium fumarate, as intermediate, in a nitrogen atmosphere it reacts with iron(II)-sulfate in molar ratio of 1:1. The obtained iron(II) fumarate is a reddish precipitate with the purity of 98 %. In order to improve the poor solubility of the synthesized iron(II) fumarate, inclusion complexes with β-cyclodextrin (β-CD) and 2-hydroxypropyl-β-cyclodextrin (HP-β-CD) were prepared by using a co-precipitation method in molar ratio of 1:1. The characterization of inclusion complexes, iron(II) fumarate and cyclodextrin was done out by using Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC) and X-Ray Diffraction (XRD) methods. The solubility of iron(II) fumarate in the pure state and in the complexes was determined by UV/VIS method. The best solubility was obtained for the 2-hydroxypropyl-β-cyclodextrin: iron(II) fumarate complex.
Databáze: OpenAIRE