Influence of the purification of sodium dodecyl sulfate on the physical properties of solutions and O/W emulsions.
The effect of the purification of sodium dodecyl sulfate (SDS) has been studied in aqueous solutions and in o/w emulsions. The physical properties (surface tension, conductivity, light dispersion, viscosity, and granulometry) depend on the degree of purity of surfactant. This effect is less important within the emulsion technology when thickener or cosurfactant agents are added to the emulsion.
Arias
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Departamento de Química Física Farmacéutica, Universidad Complutense, Ciudad Universitaria, E-28040 Madrid, Spain.
Gómez-Escalonilla
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I
Rueda
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Molina
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C
D002626:Chemistry, Pharmaceutical; D004339:Drug Compounding / Q000379:methods; D004655:Emulsions / Q000737:chemistry*; D019999:Pharmaceutical Solutions / Q000737:chemistry*; D012967:Sodium Dodecyl Sulfate / Q000737:chemistry*; D013500:Surface Tension; D013501:Surface-Active Agents / Q000737:chemistry; D014783:Viscosity
D004655:Emulsions; D019999:Pharmaceutical Solutions; D013501:Surface-Active Agents; D012967:Sodium Dodecyl Sulfate