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How do chemical hand warmers work? - Camping, Backpacking & Hiking

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I actually just did a lesson on this with my students. When the chemical hand warmer is removed from the outer packet and exposed to oxygen, it produces an exothermic chemical reaction, which is a reaction that gives off heat. The result of this reaction is iron oxide or rust.

Posted on Dec 31, 2012

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1 Answer

What do people use chemical hand warmers for?


Chemical hand warmers are usually used for people to keep their hands or feet warm while outside or camping.

Feb 20, 2013 | Camping, Backpacking & Hiking

1 Answer

What is the price range for chemical hand warmers?


Chemical hand warmers can cost anywhere from 50 cents to 6 dollars each. I prefer to buy the 50 cent ones since they only last for a few hours anyway.

Dec 31, 2012 | Camping, Backpacking & Hiking

1 Answer

What's inside chemical hand warmers?


It usually consists of iron powder, activated carbon, salt, water, and some type of absorbent material.

Dec 31, 2012 | Camping, Backpacking & Hiking

2 Answers

What type of chemical hand warmer lasts the longest?


Your best bet is to avoid those chemical hand warmers completely. I think your best bet is to pick up a Zippo hand warmer, which lasts for up to 12 hours. It definitely kept me warm on my last hunting trip. Plus, you can refill it with lighter fluid when it runs out.

Dec 31, 2012 | Camping, Backpacking & Hiking

1 Answer

Are chemical hand warmers toxic?


I was also worried about this, but after reading up on the topic, I found that most of the chemicals in these things are safe and non-toxic. No need to worry.

Dec 31, 2012 | Camping, Backpacking & Hiking

1 Answer

How do air activated chemical hand warmers work?


The heating reaction is triggered by a combination of cellulose, iron, water, active carbon, vermiculite, and salt. The combination of ingredients is responsible for the reaction when they are exposed to air.

Jul 09, 2012 | Camping, Backpacking & Hiking

1 Answer

I think my dog ate my chemical hand warmers. What should I do?


You need to take him to the vet ASAP because hand warmers are highly toxic your dog's stomach likely needs to be pumped.

Jul 09, 2012 | Camping, Backpacking & Hiking

1 Answer

Is it safe to put chemical hand warmers elsewhere besides on hands?


Hand warmers usually come with a warning that says they should only be used on hands or feet. Like any product you always have to follow the instructions on the box carefully.

Jul 09, 2012 | Camping, Backpacking & Hiking

2 Answers

What do people use chemical hand warmers for?


Chemical hand warmers are usually used for people to keep their hands or feet warm while outside or camping.

Jul 09, 2012 | Camping, Backpacking & Hiking

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