Your Safer Source for Science
All-In-One Science Solution
Your Safer Source for Science
Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
Fax 866-452-1436
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Item #: PF2030 

Price: $20.00

Performance Assessment

In this lab experience, students carry out an investigation examining road deicers. They combine their data with cost information to make a recommendation about which material should be used. Students should come to understand that the more species a compound dissociates into, the greater the effect it has on the melting point. Calcium chloride is found to be the most effective road deicer. However, at twice the price of sodium chloride students might not consider it to be cost effective.

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Product Details

Safety: Before conducting the lab, review the safety precautions on the student page with the class. Then discuss any safety precautions that are specific to your science laboratory or classroom.

Materials Included in Kit

Calcium chloride, CaCl2, 120 g
Silicon dioxide, SiO2, 200 g
Sodium chloride, NaCl, 120 g

Additional Materials Required
Beakers, Borosilicate Glass, 50-mL, 40
Beakers, Borosilicate Glass, 600-mL, 10
Flinn Digital Thermometer, 10
Flinn Scientific Electronic Balance, 510 x 0.1-g, 10
Student Timer, 12-pack, 1