SEARCH Articles Figures Tables 2-ethylhexyl phosphonates Acid extractable Acid extractables Acid extraction Acidic extractants Acids solvents Cobalt extraction Cobalt solvent extraction Cobaltous acid ETHYLHEXYL Esters solvents Extractable Acidity Extraction acidic extractants Phosphonate esters Phosphonic acid Phosphonic acid esters Phosphonic acid solvent extraction Phosphonic acid, 2-ethylhexyl2-ethylhexyl ester Phosphonic acid/phosphonate Phosphonic acids acidity Phosphonic ester Phosphonous Esters Phosphonous acid Phosphonous acid esters Solvents acidic Solvents acidity