If mixed thourghly the ions from the biodiesel will be more attracted to the water phase than the biodiesel phase. The pH value of the biodiesel will reflect in the water phase. So the water phase is the place to do the measurement in. With best regards Jan ----- Original Message ----- From: <[EMAIL PROTECTED]> To: <biofuel@sustainablelists.org> Sent: Saturday, June 09, 2007 4:54 PM Subject: [Biofuel] biodiesel pH
> > hello, > Yes, you are right Andres and Keith. > I realise there is no need to measure pH of fresh oil, and to do a > titration on the used oils instead, I was not specific enough. > So when the wash water has a pH of 7, the biodiesel should also, as the > ions > should be equal in both solutions. is that right? By the way, whats > virgin oil then? > > When doing the titration, as the 2 solutions of oil and methanol don't > mix, do i just need to keep them vigorously shaken? Also would you > suggest a pH meter for this step. > > Jan, When you say to use 10% biodiesel in 90% distiled water, mix, then > let separate. Do you mean to test the biodiesel's or the water's pH? > > thankyou to all who replied. > > Josh. > > _______________________________________________ > Biofuel mailing list > Biofuel@sustainablelists.org > http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > > Search the combined Biofuel and Biofuels-biz list archives (50,000 > messages): > http://www.mail-archive.com/biofuel@sustainablelists.org/ > > > _______________________________________________ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
