1• ---o-- 2o% • 40% 0 i I I , i i • 0 20 40 60 Aging periad (days) 80 Figure 12. Change of water content migrating from water phase into surfactant phase (Sunsoft O-30B) with varied concentration of monasodium L-glutamate monahydrate with time • •o ter 2 j• • 20• oq-soIn of monasodium L-glutamate monahydrate • • 20% aq-soln of Urea ] • & 20% aq-soln of KSCN 0• •0 4• ' •0' ' ' •0 Aging period (days) Figure l•, Ch•ge at w•[e• conte•, m•g•fing [•om w•ter phase into sur[•ct•t phase (Sa•so[t O-•0B) with wried solute with time
300 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS 9 e•--e----'•e-- • -'P H 10.3 [ 6 . •,_ - a•PH 6.5 • 5 o o PH 3.3 øu 4 / 0 20 40 60 Aging period (days) Figure 14. Change of water content, migrating from water phase into surfactant phase, with varied pH with time
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