home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!dtix!darwin.sura.net!jvnc.net!nuscc!ntuix!mgqlu
- From: mgqlu@ntuix.ntu.ac.sg (Max Lu)
- Newsgroups: sci.chem
- Subject: Re: ?HAND WARMERS ?
- Message-ID: <1992Nov19.051851.4521@ntuix.ntu.ac.sg>
- Date: 19 Nov 92 05:18:51 GMT
- References: <15NOV92.09385194@don.waisman.wisc.edu>
- Organization: Nanyang Technological University - Singapore
- Lines: 15
- X-Newsreader: TIN [version 1.1 PL6]
-
- It seems to me that the water and activated charcoal are the heat-generating
- chemicals. When water adsorbed into the charcoal, a significant amount
- of heat will be released. but not sure what the iron powder and salt do?
-
- Anyone has more ideas on this? BTW, who is the manufacturer of such a
- handwarmer?
-
- Ciao
-
- Max
- --
- * Max G Q Lu, PhD (Lecturer in Thermal Engineering)
- * School of MPE, Nanyang Technological University
- * Nanyang Avenue, Singapore 2263. (Email: mgqlu@ntu.ac.sg)
- * Phone: (65) 7911744 Ext.4818 Fax: (65) 7911859
-