Fig. (1) Phase diagrams of (A) O/W microemulsion region of OA, Smix 1:1 and water. (B) O/W microemulsion region of OA, Smix 2:1 and water. (C) O/W microemulsion region of IPM, Smix 1:1 and water. (D) O/W microemulsion region of IPM, Smix 2:1 and water. (E) O/W microemulsion region of IPP, Smix1:1 and water. (F) O/W microemulsion region of IPP, Smix 2:1 and water.