Abstract
Dehydration upon divalent counterion binding has been studied by means of counterion activity, density and sound-velocity measurements for aqueous solutions of Na poly(acrylate) MgCl 2 or CaCl 2 and Na poly( l-glutamate) MgCl 2 . The dehydration number and dehydration fraction (ratio of dehydration number to total hydration number) of the following two types of binding reactions, 2(COO −Na +) + M 2+ → (COO −) 2M 2+ + 2Na + and 2(COO −) + M 2+ → (COO −) 2M 2+, were estimated from compressibility data obtained from the density and sound-velocity measurements. It has been suggested that the dehydration fraction of the former reaction, which includes the hydration change of Na + ions upon reaction, serves as a measure of the relative binding strength of the divalent cations, while the dehydration fraction of the latter reaction serves as a measure of the binding mode.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
