MECHANISM OF THE SOLVENT-EXTRACTION OF PERTECHNETATE WITH TETRAPHENYLARSONIUM CHLORIDE

Authors
OMORI T ASAHINA K SUGANUMA H
Citation
T. Omori et al., MECHANISM OF THE SOLVENT-EXTRACTION OF PERTECHNETATE WITH TETRAPHENYLARSONIUM CHLORIDE, Journal of radioanalytical and nuclear chemistry, 191(1), 1995, pp. 99-104
Citations number
7
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
191
Issue
1
Year of publication
1995
Pages
99 - 104
Database
ISI
SICI code
0236-5731(1995)191:1<99:MOTSOP>2.0.ZU;2-Y
Abstract
Based on the fundamental parameters governing the distribution equilib rium of tetraphenylarsonium chloride (TPAC) between the n-hexane-chlor oform and aqueous solutions, the extraction mechanism of pertechnetate with TPAC has been systematically investigated. By the analysis of a relation of the distribution ratio of pertechnetate and the hydrogen i on concentration, the dissociation constant of pertechnetic acid was d etermined to be K-a = 2.09 +/- 0.18 at 25 degrees C.