Industrial & Engineering Chemistry Research, Vol.57, No.38, 12683-12688, 2018
Correlation between Sequestrant Type and Properties of Mild Soap-Based Hand Washing Products
In this work the study attempted to determine the correlation between the types of sequestrants used and the quality of soap-based hand washing products. A total of four formulations were prepared, containing various additives sequestrant. A reference formulation used in the tests was a product prototype without the addition of any sequestrants. It was found that application of sequestrant and its type used in a given formulation resulting in diverse viscosity values and potentially influencing the time of dissolution in water. The products under analysis were shown to have favorable functional parameters including the ability to emulsify fat and foaming properties evaluated in solutions in distilled water. Significant differences in results were noted in the evaluation of foaming properties, and an increase in turbidity was noted in washing baths prepared using the analyzed products in hard water, in comparison to solutions in distilled water. This may be due to the presence of soap in the product compositions and is attributable to the type of sequestrant used. With respect to the evaluation of product safety (zein value measurement), the products were shown to have a relatively low skin irritation potential, with no significant observed differences linked to the sequestrant additive used.