Order early for pre-holiday delivery. Flinn will be closed December 24th, 2025,
through January 4th, 2026, reopening Monday, January 5th, 2026.
Orders received after 10:30 AM Central Time on Tuesday, December 23rd, 2025,
will ship after we return.
PC2188
Price: $5.20
An ancient craft, soap-making is one of the oldest known chemical reactions of organic compounds. Soaps are sodium and potassium salts of fatty acids prepared by reacting fats and oils with a strong base. With the Making Soap: The Oldest Organic Reaction—ChemTopic™ Lab Activity, prepare soap and investigate its properties, such as pH, texture, emulsifying action and solubility in hard water.