It is important to strip the dye from organic phase and
allow the reuse of organic solvent without loss in efficiency
in L–L extraction process. Various acids were used in this
study such as sulfuric acid, hydrochloric acid, Nitric acid
and acetic acid as stripping agents. Different concentrations
of the mentioned acids were used for the purpose of the stripping
process, but there is no noticeable results obtained. Also
when a mixture of these acids with thiourea was used no results
were obtained except in case of hydrochloric acid. When a mixture
of hydrochloric acid (1 M) and thiourea of different concentrations
(0.5 M, 0.75 M and 1 M) was used, the dye was
removed completely from the organic phase.