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Infrared Absorption of Concentrated Aqueous NaClO4 Solutions to High Pressures and Temperatures
| Content Provider | Semantic Scholar |
|---|---|
| Author | Valyashko, V. M. Buback, Michael Franck, Ernst Ulrich |
| Copyright Year | 1980 |
| Abstract | The infrared absorption of the O-D stretching fundamental of HDO in concentrated aqueous (HDO/H2O)NaClO4 solutions up to 20 mole% salt has been measured. The data for the wave-number of maximum absorption, ν̅(max), and for the integrated molar absorptivity B up to pressures and temperatures of 2800 bar and 250 °C, respectively, demonstrate the importance of non-hydrogen-bonded interactions in aqueous perchlorate solutions. A non-continuous distribution of the states of water molecules is clearly evident from the experimental spectra. A band separation using three Gaussian components proves the close similarity between the high-pressure high-temperature vibrational O-D infrared spectra of aqueous perchlorate solutions and the O-D Raman spectra of water and aqueous solutions. Results of the band separation together with literature Raman data provide some evidence that a transition from “water-like” to “melt-like” behaviour occurs in a fairly narrow concentration region between 10 and 15 mole% salt. |
| Starting Page | 1169 |
| Ending Page | 1176 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.1515/zna-1981-1106 |
| Volume Number | 36 |
| Alternate Webpage(s) | http://zfn.mpdl.mpg.de/data/Reihe_A/36/ZNA-1981-36a-1169.pdf |
| Alternate Webpage(s) | http://zfn.mpdl.mpg.de/data/Reihe_A/35/ZNA-1980-35a-0549.pdf |
| Alternate Webpage(s) | https://doi.org/10.1515/zna-1981-1106 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
