Shop All:Frey Scientific

Frey Scientific Reusable Heat Pack, 8 x 8 Inches

Image for Frey Scientific Reusable Heat Pack, 8 x 8 Inches from School Specialty
Click to Zoom
Item #: 1392321
$23.89 CAD
$21.50 CAD

Show students an example of a chemical reaction that they can hold in their hand and feel with this reusable heat pack!

Select options to add to cart.
Select options to add to list.
Add to Cart
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