Phase Equilibrium and Crystallization Process of the Ternary System KCl-(NH₂)₂CO-H₂O at Different Temperatures

Table 4

Association parameters of Wilson and NRTL models.

Model	i–j	aij	bij	aji	bji
Wilson	KCl-(NH2)2CO	4.55	−1950.74	23.01	−6992.89
	KCl-H2O	5.31	−2878.85	−1.90	471.05
	(NH2)2CO-H2O	−1.54	−169.38	3.33	−123.86
NRTL	KCl-(NH2)2CO	17.84	−5609.33	−4.86	337.57
	KCl-H2O	−3.90	4284.33	0.68	−1830.73
	(NH2)2CO-H2O	15.01	−2569.84	4.13	−1596.63