In the Soap Making Consumer Chemistry Laboratory Kit, students use old-time recipes and hydrolyze several commonly used oils to obtain a “homemade” soap sample. They then test the “homemade” soap sample along with a commercial soap sample.
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The process of making soap, or saponification, is an age-old process. How did our ancestors make soap years ago? In this activity, students will use old-time soap-making recipes and will hydrolyze several commonly used oils to obtain a “homemade” soap sample. They will then test the “homemade” soap sample along with a commercial soap sample to determine pH, lathering ability, behavior in hard water, and ability to cut through grease. Includes reproducible student handouts, detailed background information, Teacher Notes with sample data and answers to questions, and all chemicals needed to perform the lab.
Complete for 30 students working in pairs.