Handy Heart Eco Warmer, Strapya World
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All Comments (87)
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@Sifiyalla i think mine got a hole in it ... :S
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put it into warm water,,,,
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I get these from HotSnapZ.com
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@fritosacks if its cold it gets hard then you put it into boiling water so it get liquet again and you get use it again
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these can easily be made
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@Sifiyalla i wanted to ask if they are for one use only xD
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@soccerman1434 The explanation is kinda lacking in detail here. Basically there is a latent energy of an ionic solid known as lattice energy. When an ionic salt is dissolved, this lattice energy (stored in bonds between molecules of the salt) is released as an energy gain for the mixture. The other energy exchange involved is the solvation of the ions that make the salt into the solvent. This means you can have both hot and cold versions of this device depending on the salt chosen.
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are these one time use? or can you use them multiple times
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@soccerman1434 I completely understood everything you just said, hahahahahaha. Thank you man :P
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@ARR016a Nah, that's not quite how it works. It is not a chemical reaction, unlike most other hand warmers, but a physical one. I think I described how it works below.
I bought this!
It stayed nice and hot for about a half hour.
After that it gradually cools for another hour... during this period it's just warm, not really an ideal lasting handwarmer.
I've heard stories about how it stayed long for 8 hours but that def. wasn't the case for me ): still I really like it, it's so cuute!
scrapingskies 2 years ago 24
What makes these so wonderful is that they are reusable and will last forever :)
Sifiyalla 2 years ago 22