Yes, Andres Secco is right. If you want to determine the free acidity of the virgin oil, you should use titration. But if you want to determine the pH value of the finished biodiesel (which should be close to 7) a pH meter is handy. But the pH has to be measured in a water phase, e.g. 10% biodiesel in distilled water, Just make sure that you first let the biodiesel and water to mix properly and then separate compleatly after that.
With best regards AGERATEC AB Jan Warnqvist ----- Original Message ----- From: "Andres Secco" <[EMAIL PROTECTED]> To: <biofuel@sustainablelists.org> Sent: Monday, June 04, 2007 5:47 PM Subject: Re: [Biofuel] pH meters Why a pH meter Joshua?. Acidity does not makes sense in an oil phase. The right thing is to make a titration pH has no sense nor numeric sense in a non aqueous systems ----- Original Message ----- From: <[EMAIL PROTECTED]> To: <biofuel@sustainablelists.org> Sent: Monday, June 04, 2007 6:35 AM Subject: [Biofuel] pH meters > Hello, > Im making some biodiesel and I'm having some difficulty finding a > reasonably priced electronic pH meter to purchase so I can test the virgin > oil and the resulting biodiesel. it would be appreciated if anyone with an > answer or some knowledge in this area could steer me in the right > direction. > > Joshua > > _______________________________________________ > 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/ > ______________________________ Visita http://www.tutopia.com y comienza a navegar más rápido en Internet. Tutopia es Internet para todos. _______________________________________________ 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/
