Solvent Extraction of Thorium Using 5,11,17,23-Tetra[(2-ethyl acetoethoxyphenyl)(azo)phenyl]calix[4]arene

Table 1

Influence of solvents on extraction (%) of Th(IV).

Solvents	(nm)	Extraction (%)	Distribution ratio
Toluene	523	50	5.42
Isoamyl alcohol	495	30	2.14
Benzene	535	70	12.85
Carbon tetrachloride	515	80	28.33
Chloroform	525	98	328.33