Komplexbildung von geradkettigen Polyolen in w��riger L�sung mit partiell hydratisierten K+ -und Ca2+ -Ionen in X- und Y-Zeolithen

Abstract

Complex Formation of Straight‐Chain Polyols in Aqueous Solution with Incompletely Hydrated K+ and Ca2+ Cations on X and Y Zeolites A systematic study was performed on the adsorption of alditole‐water mixture with a chain length of C3 to C6 on KX, KY and Ca(83)NaY zeolites. From the adsorption excess isotherms the separation factors and the equilibrium diagrams xs vs x1 of the binary mixtures were calculated. The possible triangles of 0 atoms of polyols and the influence of the conformation on formation of adsorption complexes are discussed.

Sugar Alcohols, Caries Incidence, and Remineralization of Caries Lesions: A Literature Review

“…Since these triangles can participate in complexation with Ca, complexes with different stabilities will form. The possible conformations by the interaction of alditols with partially hydrated Ca were presented by Schöllner et al [ 94 ]. The difference between pentitols and hexitols was striking.…”

“…Other values represent estimates of the present author. (b) At infinite dilution at 25°C [ 94 ]. Values for ribitol and sorbitol are from Back et al [ 95 ].…”

“…(b) At infinite dilution at 25°C [ 94 ]. Values for ribitol and sorbitol are from Back et al [ 95 ].…”

The Latest on Sugar Substitutes of the Alditol Type with Special Consideration of Erythritol and Xylitol―Rectifications and Recommendations

“…D-Mannitol is the electrophoretically slowest hexitol (i.e. showing the least degree of interaction with Ca(II) ions), but nevertheless, forms the most stable complex with partially hydrated Ca(II) ions in Ca(38) NaY-zeolites (followed by L-iditol, D-glucitol, and dulcitol [76]. It is necessary to point out; however, that the alditol-Ca(II) interactions are often weak with short reaction times compared with those between Ca(II) and organic acids such as oxalic acid, citric acid, EDTA, etc.…”