Application of super base calcium oxide catalyst in the synthesis of stearamide surfactants by amidation
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Author |
Zuhrina Masyithah, David R. A. Simbolon, Enrico Siagian and Armansyah Ginting
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e-ISSN |
1819-6608 |
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On Pages
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2500-2506
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Volume No. |
18
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Issue No. |
22
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Issue Date |
January 30, 2024
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DOI |
https://doi.org/10.59018/1123301
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Keywords |
amidation, stearic acid, super base calcium oxide, urea, stearamide.
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Abstract
Surfactant is a substance that can reduce surface tension, which has two groups in one molecule: hydrophilic and
hydrophobic. These two groups, in the same molecule, have different degrees of polarity. In this study, stearic acid was
amidated with urea using a super base calcium oxide catalyst in a mixture of hexane and isopropanol solvents. The study
was carried out by observing two process-independent variables: the reaction temperature in the range of 55˚C, 65˚C, and
75˚C, and the reaction time in the range of 2 hours, 3 hours, and 4 hours. Optimum conditions were obtained at a
temperature of 75°C and a reaction time of 3 hours, where a conversion of 89.88% was obtained. Then the research
samples were analyzed using FT-IR and super base calcium oxide catalyst and analyzed for morphological properties using
SEM.
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