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Citation: Xu Rui-Yun, Kong De-Jun, Cai Xian-E, Zhu Jing. Measurement of Capacitied for (n-C₁₈H₃₇NH₃)₂MCl₄[J]. Acta Physico-Chimica Sinica, ;1993, 9(06): 802-807. doi: 10.3866/PKU.WHXB19930615 shu

Measurement of Capacitied for (n-C₁₈H₃₇NH₃)₂MCl₄

1.
Shanghai Institute of Chemical Technology, Shanghai 200233; Department of Chemistry, Fudan University, Shanghai 200433

Received Date: 24 April 1992
Available Online: 15 December 1993

The heat capacities of samples were measured by Differential Scanning Calorimetry(DSC), using scanning enthalpy method. The accuracy of the heat capacity measurements was appoximately 1 per cent by the method. The heat capacities of bis(n-octadecylammonium) tetrachlorometal-iates (Ⅱ), (n-C_(18)H_(37)NH_3)_2MCl_4 (M=Mn, Zn; short notation C_(18)M), were measured from 190 to 410 K. The enthalpies and entropies of the solid-solid phase transitions for C_(18)M were calculated. The selected thermodynamic functions were given at intervals of 5 K from 190 to 410 K.
- Scanning enthalpy method; Heat capacity; Solid-solid phase transition enthalpy; Bis(n-octadecylammonium) tetrachloro-metallated(II)
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Measurement of Capacitied for (n-C18H37NH3)2MCl4

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Measurement of Capacitied for (n-C₁₈H₃₇NH₃)₂MCl₄