Research Article

Solid-Liquid Phase Equilibria of the Quaternary System NaCl + NH4Cl + NaHCO3 + NH4HCO3 + H2O at 283.15 and 313.15 K

Table 5

The fitting parameters of the refractive and density at 283.15, 313.15 K, and 0.1 MPaa.

NaClNaHCO3NH4ClNH4HCO3

283.15 K
Ai0.0070890.0104190.0028920.004293
Bi0.0011550.0011860.0012040.001006

313.15 K
Ai0.0068400.0037360.0026090.003372
Bi0.0016830.0014940.0015430.001415

aStandard uncertainties u, u (T) = 0.1 K, u (p) = 0.005 MPa (ambient pressure change).