Thanks to you both for the tips. I still haven«t tried filtering. Heating to, say, 60¼C, makes the BD clear... even leaving it in full sunshine has the same effect, but at 20¼C the BD goes back cloudy. (This is regarding Todd«s 120¼F -49¼C- suggestion)
I«ll try Paul«s suggestion first, just because it«s simpler. Anyway, I don«t quite understand how filtering removes cloudiness that comes from liquid particles (either water or glycerides). My reaction times were, I admit it, perhaps too short. I mixed four independent 1 liter batches, and they were each left to react for about 30 to 40 minutes. The reaction "seemed" complete after 10 minutes or so, and I thought 30-40 min would do. Washing stage 1 left some emulsion problems, but decanting over night allowed me to drain the water together with a small emulsified+soap layer in between. I used a 6lt pyrex with an opening at the bottom, so I always "drained" the water from below, rather than syphoning the BD form atop. Todd: how do I calculate the proportion of lye if I were to follow your suggestion? Will an excess simply wash out in the washing stage? Or might it react to form the so feared gel? My third washing left the water almost clear, and instead of an emulsion, I sort of got the washing bottle full of bubbles... but not soap bubbles. They were rather BD bubbles (5mm in diameter) in the water, and water bubbles (same size) in the BD portion, and they all dissappeared quickly after turning off the aereator. Thanks... I«ll keep in touch. Best to you all, Christian ----- Original Message ----- From: "Paul Gobert" <[EMAIL PROTECTED]> To: <biofuel@yahoogroups.com> Sent: Thursday, April 25, 2002 6:13 PM Subject: Re: [biofuel] murky > > ----- Original Message ----- > From: "Christian" <[EMAIL PROTECTED]> > To: <biofuel@yahoogroups.com> > Sent: Friday, April 26, 2002 1:28 PM > Subject: [biofuel] murky > > > > Does filtering remove the cloudiness? > > Usually works wonders, needs to be fairly fine filter medium though. For > example a disposable plastic inline fuel filter will pass cloudy BD. A 11 > micron filter paper (Whatman No. 1) produces crystal clear BD from the same > murky BD. > > Regards, > Paul Gobert. > > > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.351 / Virus Database: 197 - Release Date: 19/04/02 > > > > 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/ > > > ______________________________________________________________________________ mensaje enviado desde http://www.iespana.es emails (pop)-paginas web (espacio ilimitado)-agenda-favoritos (bookmarks)-foros -Chat ------------------------ Yahoo! Groups Sponsor ---------------------~--> Buy Stock for $4 and no minimums. FREE Money 2002. http://us.click.yahoo.com/k6cvND/n97DAA/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/
