“…Several authors used acetic acid or a mixture of acetic acid and other solvents (4, 32-34, 39, 56, 59, 70, 77). The alcohols have found wide use for the determination of acids and bases (10,15,38,68,69,80). Chloroform has been used (14, 32, 41, 50,51), but generally because of its specific solvent power for the system under study.…”