المجلة الدولية للعلوم والتقنية

Commercial powdered laundry detergents are very in develop countries and there is a great demand for their different branded types, they are complex chemical compounds whose effectiveness and on several factors and chemical and physical properties. Therefore, some of these properties were studied for ten samples of laundry soaps (powder) circulating in Libyan market, locally made and imported, according to reliable analysis methods. PH and electrical conductivity EC of all samples was measured, and proportions of chloride and caustic soda in the components of the samples were determined. The results were as follows: PH values ranged from 10.08 – 11.28, EC values from (19, 64 – 31.1) ms, CL¯ ratios of samples ranged from (0.02 – 0.07) %, and NaOH ratios from (0.008 – 0.5) %. Through the obtained results, the quality of the Libyan washing powder was studied and compared with some imported soap powders. The PH values of two samples were 10.23, 10.08, EC values 31.1 ms and 24.3 ms, CL¯ ratio of the two samples 0.03%. And NaOH ratio of the two samples 0.02% and 0.03 %. The results indicate that local soap samples have good chemical and physical properties. We recommend studying the environmental pollution resulting from these detergents and their impact on human health............ Keywords:..... powdered laundry detergents, physical and chemical properties, PH, caustic soda, conductivity.