American Plastics Council has a pretty good description of the physical properties of most domestically available plastics at
http://www.americanplasticscouncil.org/benefits/about_plastics/resin_codes/resin.html Todd Swearingen ----- Original Message ----- From: Keith Addison To: biofuel@yahoogroups.com Sent: Saturday, March 23, 2002 12:01 PM Subject: Re: [biofuel] acceptable containers for methoxide mixing Hi Todd and all I guess HDPE = High-Density PolyEthylene. Is there a simple way of identifying plastics, and other than HDPE, which types would be suitable? I've had a couple of tough-looking plastic measuring jugs I used for methoxide which quite quickly started starring and getting spider-web cracks, and finally just disintegrated. Keith >You really want to stay away from glass. Caustic splattering all over hell >and half of creation due to a minor lack of attention or slip is not a >pretty thought. > >Mixing alcohol and catalyst generates great amounts of heat, to the point >that the alcohol can boil. > >Using plastic jugs is not a wise idea, as generally people tend to think >they can simply place the lid on and shake vigorously. > >That's a disaster waiting to happen...pressure can build up... lids can pop >off...seams can split. > >If I had to reccommend, I would suggest gentle agitation in a thick HDPE >container, inside a retainment vessel of some sort, to catch spills, slops >and leaks. > >AND NEVER.....unless you really want to take on a high risk for eye damage >and an expensive ER and optomological specialist's visit.....NEVER mix >alcohol and catalyst or work with the mixture without safety goggles. > >Bases can do far more damage to eye tissue in a shorter time period than >acids. > >Todd Swearingen > >HDPE is probably the most readily available and sufficient >----- Original Message ----- >From: Stuart Kreitman >To: biofuel@yahoogroups.com >Sent: Saturday, March 23, 2002 12:57 AM >Subject: [biofuel] acceptable containers for methoxide mixing > > >I understand that glass or stainless steel are best for preparing >methoxide, but what about >plastics? Which plastics work, which do not, and how do you tell ? other >than sacrificing a small >sample in a glass jar of methoxide). > >skk Yahoo! Groups Sponsor ADVERTISEMENT Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Please do NOT send "unsubscribe" messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. [Non-text portions of this message have been removed] ------------------------ Yahoo! Groups Sponsor ---------------------~--> Buy Stock for $4. No Minimums. FREE Money 2002. http://us.click.yahoo.com/BgmYkB/VovDAA/ySSFAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Please do NOT send "unsubscribe" messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
