What Chemicals Are Used in Hand Warmers?

Answer

Hand warmers are small disposable packets that are held in the hand and produce heat on demand to warm cold hands. Packaged hand warmers contain iron particles or powder, salt water, activated carbon, an absorbent material and other chemicals which act as insulators. When the hand warmer pouch is removed from its packaging, oxygen drifts across the pouch’s permeable covering. With water and salt present, the oxygen reacts with the iron powder that is inside to form iron oxide and release heat.
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Sodium Acetate (C2H3NaO2) is a white powder often used in hand warmers. First, the hand warmer is heated to above 100 degrees Celsius and allowed to cool to room ...
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Jell hand warmers usually contains a concentrated solution of sodium acetate or the aqueous salt together with a flexible metallic activator strip. The metallic ...
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