A. Alian et al., ADSORPTION OF RADIOISOTOPES FROM THEIR ORGANIC SOLUTIONS ON FILTER PAPERS - THE SB(III) NONPOLAR-SOLVENTS SYSTEM, Journal of radioanalytical and nuclear chemistry, 209(1), 1996, pp. 135-145
The extraction of Sb(III) chloride by nonpolar solvents from 0.15M HCl
was studied as a function of sulphuric acid concentrations in the aqu
eous phase. nle distribution of Sb(III) chloride between the nonpolar
solvents benzene, toluene, xylene, nitrobenzene, cyclohexane, chlorofo
rm and carbon tetrachloride and filter paper is reported. In case of b
enzene the Sb(III) activity (given in counts.s(-1)..ml(-1)) decreases
from similar to 1500 to similar to 200 after 24 hours. The correspondi
ng values are about 1200 and 540 for toluene, 1330 and 50 for xylene,
1050 and 700 for nitrobenzene, 1080 and 22 for cyclohexane, 330 and 30
for chloroform and 130 and 40 for carbon tetrachloride. More than 95%
of the adsorbed Sb(III) is desorbed by 1M HNO3. 1M HCl or 0.5M H2SO4
by contacting the loaded filter paper with any of these acids for 27 h
ours.