A heat pack is a commercial product used by hikers and skiers as a hand warmer. It consists of a plastic pouch filled with a supercooled solution of sodium acetate (NaCOOCH 3). When a metal disc in ...

Commercial heat packs (containing iron and water, or supersaturated sodium acetate) and cold packs (various ammonium salts) can be used to show exo- and endothermicity. Heat packs that contain iron ...

Heat packs and cold packs can offer relief, but choosing between the two can be baffling. Which will be best for your ...

There’s a simple rule for getting it right. Whether you treat with ice or heat depends on the type of injury. If you have a sudden injury which results in swelling, such as a sprained ankle ...