What is the best metal to use for a hand-warmer?
I take it you are asking on the basis of a hand-warming device for campers/hunters ?
Since stainless steel has a higher mass than aluminum but would not be as reactive in the event of a leak, it might be the ideal container for these kinds of reactions.
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Stainless steel is widely regarded as the ideal metal for hand warmers.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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