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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Regenerating Silica Desiccant
I've got several pounds of silica desiccant, the stuff that looks like
aquarium gravel. Very hand for keeping crackers crisp in the soggy Pacific Northwest. I've regenerated it before, but I've lost my notes. Somebody out there remember what temperature and how long? (ball park is likely good enough) Thanks Jim |
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In article ,
Jim McGill wrote: I've got several pounds of silica desiccant, the stuff that looks like aquarium gravel. Very hand for keeping crackers crisp in the soggy Pacific Northwest. I've regenerated it before, but I've lost my notes. Somebody out there remember what temperature and how long? (ball park is likely good enough) Thanks Jim 250-300 for half an hour or so spread out in a thin layer on a cookie sheet seems to be ringing a bell in my head. Key is "Above the boiling point of water, but not so hot you 'burn' it". Trouble is, I can't find *MY* notes on where it starts getting too hot! -- Don Bruder - - New Email policy in effect as of Feb. 21, 2004. Short form: I'm trashing EVERY E-mail that doesn't contain a password in the subject unless it comes from a "whitelisted" (pre-approved by me) address. See http://www.sonic.net/~dakidd/main/contact.html for full details. |
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"Don Bruder" wrote in message ... In article , Jim McGill wrote: I've got several pounds of silica desiccant, the stuff that looks like aquarium gravel. Very hand for keeping crackers crisp in the soggy Pacific Northwest. I've regenerated it before, but I've lost my notes. Somebody out there remember what temperature and how long? (ball park is likely good enough) Thanks Jim 250-300 for half an hour or so spread out in a thin layer on a cookie sheet seems to be ringing a bell in my head. Key is "Above the boiling point of water, but not so hot you 'burn' it". Trouble is, I can't find *MY* notes on where it starts getting too hot! -- Don Bruder - - New Email policy in effect as of Feb. 21, 2004. Short form: I'm trashing EVERY E-mail that doesn't contain a password in the subject unless it comes from a "whitelisted" (pre-approved by me) address. See http://www.sonic.net/~dakidd/main/contact.html for full details. Google is your friend. http://www.envirogel.co.uk/improving...activation.htm There are more -- John G Wot's Your Real Problem? |
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