European Journal of Biomedical and Pharmaceutical Sciences

ANALYTICAL STUDIES AND PHYSIOCHEMICAL PROPERTIES OF COMMERCIAL AVAILABLE SOAPS IN THE MARKET

Dr. G. Abirami*, M. Raman, P. Prasath, S. Suyampuraj and A. Murugaiyan

ABSTRACT

Soap is sodium or potassium salt of fatty acid produced by saponification reaction. Soap is used on a day to day basis by households. The physicochemical properties of soaps determine their quality and hence determine their efficiency and their cleansing properties. we can determine the competency and cleaning properties of soaps by knowing the physicochemical properties. Six commercially available soaps were taken (3 natural soaps and 3synthetic soaps) for colour, odour, pH, moisture content, % of free alkali, acid value, saponification value, tfm, foam height, foam retention according to standard procedures. The pH of the solution is not more than 10.5, moisture content ranges between 13.5% to 20%, percentage of alkali is not more than 4,acid value is not more than 2, saponification value is not more than 800, foam height is not more than250 ml, Tfm ranges between 55-80%.

Keywords: Soap, pH, % of free alkali, moisture content, Saponification value, acid value, total Fatty matter.