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Frey Scientific Reusable Heat Pack, 8 x 8 Inches

Chemestry Kits, Item Number 1392321
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Item #: 1392321
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Show students an example of a chemical reaction that they can hold in their hand and feel with this reusable heat pack!

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About This Item

Description

The hand warmer contains a super saturated solution of water and sodium acetate. Snapping the metal disc creates a chain reaction causing the solution to crystallize, giving off heat. The heat packs can be recharged back to the liquid state by boiling water for 10-15 minutes and allowed to slowly cool. 8 x 8 inches.

Features

  • Shows how sodium acetate uses the process of supercooling to create heat
  • Great for everything from muscle aches to scientific demonstrations
  • Combines practical applications with a process that's fun to watch
  • Reusable and compact - perfect for classrooms

Includes:

  • 1 Heat Pack
Specifications
Maximum Age: 12 years
Allergens: Contains No Allergens
Certifications: Not Applicable
Grade Level: Middle-High School
Specialty Shops: Exclusive
Safety: Caution Icon. No Choking Hazard
SUOM Description: Each
Brand Name: Frey Scientific
Description: Reusable Heat Pack
Dimensions: 8 x 8 in
Material: Vinly, Water
Frey Scientific Reusable Heat Pack, 8 x 8 Inches