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American Scientific Heat Packs
SDPSCI_ED

Catalog No. p-5189700
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Product Type:
Heat Pack (10.1 x 10.1cm (4 x 4 in.))
Heat Pack (20.3 x 20.3cm (8 x 8 in.))

Description

Reusable and portable pack to produce instant heat.

  • Contains super saturated solution of water and sodium acetate
  • Chain reaction created by snapping metal disc crystallize solution which gives off heat
  • Recharged back to liquid state from crystallized state by boiling in water for 10-15 minutes
  • Includes teacherapostrophes guide
  • Available in two sizes: 4 x 4 in. and 8 x 8 in.

Specifications

Product Type Heat Pack (10.1 x 10.1cm (4 x 4 in.))
Includes Teacher's guide
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