caa a22 4500 477139523 CHVBK 20180405111728.0 cr unu---uuuuu 170330e19970501xx s 000 0 eng 10.1007/BF02767601 doi (NATIONALLICENCE)springer-10.1007/BF02767601 Apparent and standard molar volumes and heat capacities of aqueous Ni(ClO4)2 from 25 to 85°C [Elektronische Daten] [Pujing Pan, Allan Campbell] Apparent molar heat capacities and volumes of aqueous Ni(C104)2 were measured from 25 to 85°C over a concentration range of 0.02 to 0.8 mol-kg-1 using a Picker flow microcalorimeter and a Picker vibrating-tube densimeter. An extended Debye-Hückel equation was fitted to the experimental data to obtain expressions for the apparent molar properties as functions of ionic strength for Ni(ClO4)2(aq). The standard-state partial molar properties for Ni(C104)2(aq) in the temperature range 25 to 85°C were obtained and can be expressed by empirical equations as 97787 $$\bar C_p^o \left( {Ni(ClO_4 } \right)_2 /J - K^{ - 1} - mol^{ - 1} = 2271.1 - \frac{{97787}}{{T - 190}} - 4.9$$ and $$\bar V^o \left( {Ni(ClO_4 } \right)_2 /cm^3 - mol^{ - 1} = 242.43 - \frac{{8563.7}}{{T - 190}} - 0.34927T$$ withT in K. The standard partial molar heat capacities and volumes for Ni2+ (aq) from 25 to 86°C were obtained by using the additivity rule and data for ClO- 4(aq) in the literature. These values were extrapolated to 300°C by employing the Helgeson-Kirkham-Flower (HKF) equations, amended to include a standard-state correction term. Plenum Publishing Corporation, 1997 Apparent molar volumes nationallicence apparent molar heat capacities nationallicence standard molar properties nationallicence nickel perchlorate nationallicence calorimetry nationallicence electrolyte solutions nationallicence HKF equation nationallicence Pan Pujing Research Chemistry Branch, Atomic Energy of Canada Limited, Whiteshell Laboratories, ROE 1L0, Pinawa, MB, Canada aut Campbell Allan Research Chemistry Branch, Atomic Energy of Canada Limited, Whiteshell Laboratories, ROE 1L0, Pinawa, MB, Canada aut Journal of Solution Chemistry Springer US 26/5(1997-05-01), 461-478 0095-9782 26:5<461 1997 26 10953 https://doi.org/10.1007/BF02767601 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02767601 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pan Pujing Research Chemistry Branch, Atomic Energy of Canada Limited, Whiteshell Laboratories, ROE 1L0, Pinawa, MB, Canada aut NATIONALLICENCE 700 1- Campbell Allan Research Chemistry Branch, Atomic Energy of Canada Limited, Whiteshell Laboratories, ROE 1L0, Pinawa, MB, Canada aut NATIONALLICENCE 773 0- Journal of Solution Chemistry Springer US 26/5(1997-05-01), 461-478 0095-9782 26:5<461 1997 26 10953 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer