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Chemistry of Food Additives - Multi-Demonstration Kit

by Flinn Scientific

Item #: AP7288

Price: $62.75

The Chemistry of Food Additives Chemical Demonstration Kit consists of four parts and allows students to see the science behind some marketing of convenience foods. This great series will build connections between science and real life.

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Is artificial ever beneficial? Consumers often associate food additives as being unhealthy and strictly used for convenience foods. This four-part demonstration allows students to see the science behind some of the marketing. • Extract iron from common breakfast cereal. Determine the form of iron present and compare the quantity present to the quantity specified on the Nutrition Facts label. It’s elemental! • Iodide is added to iodized salt to prevent thyroid and other diseases. Demonstrate the presence of this essential nutrient by oxidizing the iodide and doing a starch–iodine test. • Do some simple measurements to illustrate how it’s possible to claim that salt substitutes have less sodium than regular table salt. • Reveal the nature of the “secret ingredient” added to freshly cut fruit to prevent it from turning brown. This great series of demonstrations will build connections between science and real life. Teacher Demonstration Notes included. Enough materials are provided to perform the demonstration seven times. Concepts: Consumer chemistry, food additives. Time Required: One full class period with follow-up the next day. Chemicals Provided: Acetone, ascorbic acid, hydrochloric acid, iodized table salt, iron(II) sulfate solution, 1,10-phenanthroline solution, potassium iodide, salt sense, sodium chloride, sodium hypochlorite solution, starch solution.