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Sunscreens: Preparation and Evaluation—Student Laboratory Kit

By: The Flinn Staff

Item #: AP7433

Price: $51.75

In Stock.

In the Preparation and Evaluation of Sunscreen Consumer Chemistry Laboratory Kit, students create their own sunscreen. Then a spectrophotometer is used to determine the absorbance of ultraviolet light by their sunscreen.

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Sunburn! We have all experienced the pain and misery of overexposure to the Sun’s intense “heat.” Sunscreens applied to the skin shield us from the damaging ultraviolet rays. Students create their own sunscreen from one of eight prescribed formulations of lotions and sunscreen chemicals. Once the sunscreens are made, students use a spectrophotometer to determine the absorbance of ultraviolet light by their sunscreen. The results are compared to determine the most effective sunscreen.

Complete for 30 students working in pairs. A spectrophotometer is required and available separately.


Materials Included in Kit: 
Cetyl alcohol, 10 g
Glycerin, 30 mL
Oxybenzone, 6 g
n-Propyl alcohol, 500 mL
Stearic acid, powder, reagent, 30 g
Triethanolamine, 7 g
Dishes, weighing, 0.5 g, 1⅝" x 1⅝" x 5/16", 30 
Pipet, Beral-type, graduated, 20