Table 2.

Influence of HCl concentration on Rh extraction efficiency. Corresponding R values in parenthesis.

HCl Concentration (M) (R)	Extraction Efficiency (%)	Distribution Coefficient (−)
0.75 (312)	94.87	61.83
1.00 (417)	94.56	54.30
1.50 (625)	93.14	44.26
2.00 (833)	91.29	32.75
2.50 (1042)	89.87	27.86
3.00 (1250)	86.63	19.22
3.50 (1458)	81.81	14.04
4.00 (1667)	74.68	8.62
4.50 (1875)	65.93	5.85
5.00 (2083)	55.04	4.14
5.50 (2292)	6.25	0.16
6.00 (2500)	22.15	0.99
7.00 (2917)	19.14	0.69
8.00 (3333)	19.29	0.81