Pitzer方程应用于离子液体[Cnmim][H2PO4](n= 3, 4, 5, 6)溶解焓研究

胡之楠,左剑涛,夏美晨,房大维,臧树良

Study on Solution Enthalpies of Ionic Liquids [Cnmim][H2PO4] (n= 3, 4, 5, 6) by Using Pitzer's Equation

Zhinan HU,Jiantao ZUO,Meichen XIA,Dawei FANG,Shuliang ZANG

Table 4 Values of standard molar enthalpy of solution and Pitzer equation parameters of [Cnmim][H2PO4] (n = 3, 4, 5, 6)

a0 βMX(0)L βMX(1)L CMXϕL R2 s ΔsolHm0/(kJ-mol-1) [C3mim][H2PO4] -0.00403 11.556 -12.164 -168.85 0.98 3.13 × 10-5 -5.9568 [C4mim][H2PO4] -0.00268 -20.416 21.897 297.76 0.97 2.73 × 10-5 -3.9614 [C5mim][H2PO4] -0.00196 -16.005 17.543 181.98 0.99 3.81 × 10-5 -2.8971 [C6mim][H2PO4] -7.87 × 10-4 -44.978 47.780 741.52 0.96 4.45 × 10-5 -1.1634