You know those heat packs that you can use for handwarmers or shipping stuff in the winter? If I recall, one of the two chemicals used to make them is Iron Oxide. But I can't recall the second. Any clues? -Rod-

Carbon...

~H

Nope, no carbon. Iron, water, and salt. That's it.

i dont think theres water in them because its in a cloth casing(atleast all the ones ive bought).

There is moisture in them, along with iron powder and salt. As soon as you open the plastic around them, the reaction starts, making rust.

Mine had a good bit of carbon, im nearly sure, next time i go home ill have to check for sure...

~H

Go check, I thought it was carbon at first too, but it is in fact iron powder. Use a magnet to check for sure.

im say there is activated charcol

So iron powder mixed with charcoal creates heat? I'll have to try this.

quote:Originally posted by Monkeychunks:



So iron powder mixed with charcoal creates heat? I'll have to try this.

No no no, it has no charcoal. It's iron powder, moisture, and salt. Iron rusting creats heat, hence, a heat pack.

Theres probably differnt types, so don;t get all uppity about it.

The hand warmers I have in front of me are 'Sports Heat' hand warmers on the back it lists contents as:

* Iron powder

* Water

* Wood powder

* Active carbon

* Salts

I have one around here somewhere, let me go check...

*2 minutes later*

Iron powder, water, salt, activated charcoal, vermiculite

Ignore the vermiclite, it is a powerful insulator that doesn't react with much.

Mmm. Foot.