Table 4. Surface tension and viscosity of selected microemulsions(mean±SD, n=3).

Formulation	Surface tension (dynes/cm)	Viscosity (cp)
ME-1	44.17 ± 1.46	282.90 ± 1.91
ME-2	47.67 ± 0.85	253.73 ± 1.88
ME-3	46.00 ±1.06	802.63 ± 1.66
ME-4	47.67 ± 1.44	681.13 ± 1.98
ME-5	47.33 ± 0.76	445.60 ± 1.15
ME-6	49.33 ± 1.36	580.83 ± 1.92
ME-7	52.17 ± 1.25	364.17 ± 1.60
ME-8	48.50 ± 1.42	457.90 ± 1.83