Table 4.

Effect of pH variation on SX of V and Mo. (Conditions:Organic phase, 20%(v/v) Aliquat 336; A:O, 1:1; [V], 0.55 M; [Mo], 0.045 M).

pH	Concentration in organic phase, M		Distribution coefficient (D)		Separation factor (SF)
	V	Mo	V	Mo	V/Mo	Mo/V
2	0.375	0.045	2.14	999.0	0.002	465.8
3	0.508	0.045	12.26	999.0	0.012	82.2
4	0.549	0.045	999.0	999.0	1.0	1.0
5	0.549	0.045	999.0	999.0	1.0	1.0
6	0.549	0.041	999.0	11.82	84.5	0.012
7	0.549	0.004	999.0	0.09	10893.9	91 × 10−6
8	0.549	45 × 10−6	999.0	10 × 10−4	998001.0	1 × 10−6
9	0.523	18 × 10−6	19.41	4 × 10−4	48501.0	20 × 10−6
10	0.343	13.5 × 10−6	1.65	3 × 10−4	5506.7	181 × 10−6
11	0.113	9 × 10−6	0.26	2 × 10−4	1297.0	771 × 10−6
12	0.006	4.5 × 10−6	0.01	1 × 10−4	111.2	8991 × 10−6