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Abstract
Annals of Chemical Science Research
Analysis and Identification of two Soaps by Infrared Absorption Spectra and Reflectance Graphs
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Open or Close Chryssou K*, Stassinopoulou M and Lampi E
General Chemical State Laboratory, Greece
*Corresponding author: Chryssou K, General Chemical State Laboratory, Greece
Submission: December 02, 2019Published: December 09, 2019
Abstract
Two soap bars one green and another white green were analyzed, and their total fatty matter content, unsaponifiable, un-saponified and un-saponified saponifiable matter content, ethanol-insoluble matter, and free caustic alkali content were determined. The infrared spectra of total lipids, unsaponifiable fats, and insoluble matter in ethanol, were recorded for the two soaps. The Kubelka-Munk K/S values were calculated using the expression depended on reflectivity R͚ of the observed soap’s surface, as well as the CIE L*a*b* values for both soaps.
Keywords: Soap; Total fatty matter content; FT IR spectra; Kubelka-Munk expression; Color in the CIE L*a*b* system
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