>Being the obsessed quality tests homebrewer, I've been looking into the >Leonardo site (very useful!) and was obsessively bugging everyone I knew >for a translation of the residual catalyst test kit they described. > > From what I could make out from the babelfish translation (the original >German article is on the leonardo site and the babelfisth translation >yields very amusing computer-mangled English!), it was a titration that >used diethyl ether AND methanol as a solvent, and hydrochloric acid as a >reagent to give you an approximate value for residual catalyst. Then the >article went on to say that it is only an approximate test, just like the >rest of our shadetree tests, most of which don't involve chemicals like this. > >If you want to go to all this trouble, you'll probably still find out that >there is residual catalyst and soaps in unwashed homebrew, and that you >therefore should wash your fuel. When I initially bugged Todd Swearingen >and asked him to talk to his chemist about this test, he basically said, >why bother? just wash your fuel. And now I'm starting to believe this. A >simple pH test will also tell you that you need to wash your fuel. > >Mark
Hi Mark I copied too much in there, sorry - it's the Transesterification Degree bit I was referring to, not Remains of catalyst or Flash Point: "the thinlayer-chromatographic determination of the transesterification-degree". There's no direct url, it's all frames and pull-downs. Hit "Transesterification Degree" in the pull-down at the top-right. It's in English, more or less. Dan, Todd's chemist, once said it wouldn't be too hard to rig up such a thin-layer chromatography test-kit and write instructions on using it. Aleks also tried to get hold of it, and failed. He thought there were such kits available in Austria, but couldn't find them. Best Keith > >One thing that would be most useful is a simple and affordable > >completion test, such as this: > ><http://koal.cop.fi/leonardo/leonardo.htm>http://koal.cop.fi/leonar >do/leonardo.htm > >Select "Analysis", "Miscellaneous", "Test kit for Biodiesel" > >Transesterification Degree, > >Flash Point, > >Remains of catalyst. > > > >Quite a few people have tried to track this down without success. > >Wouldn't that be a useful thing to put only a very few of those soy > >check-off dollars into? Do something constructive to help > >biodieselers with their quality for a change instead of just > >spreading counter-productive BS - the biodieselers would certainly > >take it up, they're most interested in quality, and it would be > >appreciated, build some bridges. ------------------------ Yahoo! Groups Sponsor ---------------------~--> ˇFREE Health Insurance Quotes-eHealthInsurance.com http://us.click.yahoo.com/1.voSB/RnFFAA/46VHAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/ 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/
