Abstract
At a concentration of 0-1.0 mol·L~(-1) the effect of salts(KCI,MgCI_2,and CaCI_2) on the structure of water was studied from the viewpoint of energy change using differential scanning calorimetry(DSC) and the results were compared with that obtained by the analysis of the chemical shift obtained by ~(17)O-NMR(δ(~(17)OH_2)).A linear increase in theδ(~(170OH_2) of water and a linear decrease in the apparent activation energy(-E'/R) of water with an increase in the concentration of salt was obtained.In addition, the rate of change ofδ(~(17)OH_2) and -E'IR increased as follows:KCIMgCI_2CaCI_2.Based on a two-state model,we demonstrate that the change inδ(~(17)OH_2) of water(△δ) is proportional to the change in molar energy of water(△E).These results indicate that KCI,MgCI_2,and CaCI_2 promote the formation of the water cluster structure and the energy change of water is equivalent to the chemical shift obtained by ~(17)O-NMR for the characterization of the water cluster structure.
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.
