Description: First-Aid Hotpacks, containing either calcium chloride or magnesium sulfate, plus water, demonstrate a spontaneous exothermic solution process. These can be passed around to students.

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Source: Shakhashiri, B.Z. Chemical Demonstrations: A Handbook for Teachers of Chemistry

Year or vol: 1 page: 36

Keywords: Hot Pack, Exothermic, Sodium Thiosulfate, Calcium Chloride