Table 1.

Factor of solvent system mixed components.

Component	Name	Units	Type	Minimum	Maximum	Coded Low	Coded High	Mean	Std. Dev.
A	Citric acid (A)	%	Mixture	0	1	+0 ↔ 0	+1 ↔ 1	0.3452	0.3608
B	Glycerol (B)	%	Mixture	0	1	+0 ↔ 0	+1 ↔ 1	0.3452	0.3608
C	Water(C)	%	Mixture	0	1	+0 ↔ 0	+1 ↔ 1	0.3095	0.3690
			Mixture	Total = 0	Total = 1