home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.med
- Path: sparky!uunet!charon.amdahl.com!pacbell.com!decwrl!ames!agate!spool.mu.edu!uwm.edu!uucp.mr.med.ge.com!news.mr.med.ge.com!bonfire!hinz
- From: hinz@bonfire (David Hinz (hinz@picard.med.ge.com))
- Subject: Re: heated gloves?
- Message-ID: <1993Jan28.071511.10804@mr.med.ge.com>
- Sender: news@mr.med.ge.com
- Nntp-Posting-Host: bonfire
- Organization: GE Medical Systems, Magnetic Resonance
- X-Newsreader: TIN [version 1.1 PL8]
- References: <160@ky3b.UUCP>
- Date: Thu, 28 Jan 93 07:15:11 GMT
- Lines: 32
-
- Ken Mitchum (km@ky3b.pgh.pa.us) wrote:
- : |> >: >So does anyone know where to get rechargeable chemically-heated gloves?
-
- : Don't know, but do they still make hand warmers? When I use to throw newspapers in
- : Iowa, I lit these things and stuffed them in every place I could. I was a walking
- : torch.
-
- : -km
-
- This past week at the grocery store I found a rechargable chemical pack,
- suitable as a handwarmer. It contains a supersaturated solution of
- sodium acetate. Basically, it's a sealed plastic bag, with the solution and
- a flexible metal disc. You flex the disc, it causes the liquid to change to
- a solid, which produces lots of heat. You recharge it by putting heat
- back in (boiling), and it goes back to a liquid.
-
- I bought one ($5.00), and it works well. Seems to me you could make these
- in pretty much any form you wanted to (to fit gloves/boots better, for
- instance), for a heck of a lot cheaper than $2.00 per ounce of Sodium Acetate.
-
- (Hazily recalled chemistry here...to make the solution, you would heat
- H2O in a double boiler(?), add Sodium Acetate until you dissolve all you can.
- siphon off (or whatever) solution, seal in appropriate container, and let it
- cool. As it cools, it'll stay liquid until disturbed, possibly just shaking
- would do it).
-
- Apologies for the .chem stuff on .med, but that's where the question was
- asked.....
-
- --
-
- Dave Hinz - Opinions expressed are mine, not my employer's. Obviously.
-