• Question: what is the liquid in hand warmers

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      Asked by clairem18 to Helen on 18 Jun 2013.
      • Photo: Helen Pritchard-Smith

        Helen Pritchard-Smith answered on 18 Jun 2013:

        The liquid in hand warmers is cellulose- this is found in plants and is what makes up the fibre part of our diet and water.

        Iron is also present and it is the oxidation of iron that releases the heat as it is an exothermic (energy released in the form of heat) process.

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