Clayey soils used traditionally for cosmetic purposes in Oliver Reginald Tambo (OR) District in Eastern Cape Province, South Africa were studied and analysed for their physico-chemical properties. Forty clayey soil samples were collected from selected communities within the District and standard laboratory methods were used to determine their colour, particle size distribution, texture, pH, specific surface area (SSA) and cation exchange capacity (CEC). The study found that the colours of the samples varied from white to gray; and pH values ranged between 4.53 and 9.57. Majority of the samples were silt loam in texture. The SSA values were between 0.5 and 2.4 m 2 /g and CEC values ranged from 0.5 to 54.5 meq/100 g. From the colours of the samples, they are inferred to contain hematite and goethite which are present in many skin sunscreen and beauty products. The percentage of clay size particles in the samples were similar to those generally used in Thermal Centres. Their high CEC values may ensure skin cleansing through ion exchange between the clay mixtures and the skin. The physico-chemical properties can thus influence cleansing, sunscreen and body beautification roles for which the clayey soils are used.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.