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  • 1
    Electronic Resource
    Electronic Resource
    Thermodynamics of concentrated electrolyte mixtures. II. Densities and compressibilities of aqueous NaCl−CaCl2 at 25 °C (1982)
    Springer
    Journal of solution chemistry 11 (1982), S. 857-870 
    Details
    ISSN: 1572-8927
    Keywords: Densities ; compressibilities ; aqueous NaCl−CaCl2 ; apparent molar volumes ; apparent molar compressibilities ; Pitzer theory
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Densities and ultrasonic velocities of NaCl−CaCl2 aqueous mixtures at 25 °C have been measured for the ionic strength range I=0.30–20.0. Where NaCl solubility permitted, both properties were measured over the range of compositions from pure NaCl to pure CaCl2 at constant I. Apparent molar volumes and apparent molar compressibilities of the mixtures were calculated. The Pitzer form of the specific interaction theory is used to predict the properties of the binary mixtures from the properties of the single salt solutions. It provides a good fit over the full range of ionic strength for apparent molar volumes but a much inferior fit for compressibilities. It is also clear that in the high ionic strength range, explicit mixing parameters must be included for an excellent fit.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00644749
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  • 2
    Electronic Resource
    Electronic Resource
    The CO2-water system. I. Study of the slower hydration-dehydration step (1973)
    Springer
    Journal of solution chemistry 2 (1973), S. 357-372 
    Details
    ISSN: 1572-8927
    Keywords: Relaxation kinetics ; pressure jump ; concentration jump ; stopped flow ; carbonic acid ; isotope effects
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Using pressure-jump, concentration-jump, and stopped-flow methods, we have studied the rate of dehydration (k−1) of carbonic acid as a function of temperature (0–40°C) and ionic strength (0.005–3M NaCl, 3M LiBr) in both H2O and D2O. A new design of pressure-jump cell with reliable temperature control, as well as improved sensitivity in the spectrophotometric detection for stopped flow, enabled k−1 values to be determined with an accuracy better than ±8%, based on a comparison of results obtained using five different techniques. The influence of ionic strength, temperature, and isotope effects are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00713250
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    Paper (German National Licenses)
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