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18 Nov 2019
CHEM 1406 (Art in Chemistry) Saponification Lalb Objective: To produce soap through saponification of olive oil. Materials: .70 g olive oil . NaOH (s) Test tube and test tube holder Beakers (250 mL, 600mL, other) Ice cube molds (for soap bars) Empty plastic water or shampoo bottle Ruler Timer (use your phone's stop watch) CaCl2 250 mL Erlenmeyer flask . pH paper . Medicine dropper 100 mL graduated cylinder · Introduction: The process of making soap has remained basically unchanged for hundreds of years. The procedure involves the basic hydrolysis (saponification) of a fat. Chemically, fats (and oi triglycerides, and they contain ester functional groups. Saponification involves heatin alkaline solution. Lye (sodium hydroxide) is used as the source of the alkali. The alkalin hydrolyzes the fat to its component parts, the salt of a long-chain carboxylic acid (soap) and a alcohol (glycerol). The carboxylic acid salts of soap usually contain 12-18 carbons straight chain. The carboxylic acids containing even numbers of carbon atoms predominate, ar the chains may contain unsaturation (i.e. double bonds). ls) ar g fat with ar H2C COOR HC-COOR H2CCOOR 3 NaOH 3 RCOONa. + HCOH a triglyceride (tri-ester) from a fat or oil carboxylic acid salts (soap) RCO-Na glycerol (a tri-alcohol) C3Hg0
CHEM 1406 (Art in Chemistry) Saponification Lalb Objective: To produce soap through saponification of olive oil. Materials: .70 g olive oil . NaOH (s) Test tube and test tube holder Beakers (250 mL, 600mL, other) Ice cube molds (for soap bars) Empty plastic water or shampoo bottle Ruler Timer (use your phone's stop watch) CaCl2 250 mL Erlenmeyer flask . pH paper . Medicine dropper 100 mL graduated cylinder · Introduction: The process of making soap has remained basically unchanged for hundreds of years. The procedure involves the basic hydrolysis (saponification) of a fat. Chemically, fats (and oi triglycerides, and they contain ester functional groups. Saponification involves heatin alkaline solution. Lye (sodium hydroxide) is used as the source of the alkali. The alkalin hydrolyzes the fat to its component parts, the salt of a long-chain carboxylic acid (soap) and a alcohol (glycerol). The carboxylic acid salts of soap usually contain 12-18 carbons straight chain. The carboxylic acids containing even numbers of carbon atoms predominate, ar the chains may contain unsaturation (i.e. double bonds). ls) ar g fat with ar H2C COOR HC-COOR H2CCOOR 3 NaOH 3 RCOONa. + HCOH a triglyceride (tri-ester) from a fat or oil carboxylic acid salts (soap) RCO-Na glycerol (a tri-alcohol) C3Hg0