Hello Jeffery. The test method that you are using seems to me highly dubious, since there are a number of pre-assumptions that has to be met. For a further check I´d suggest this: Take exactly 25 ml of biodiesel and dissolve it in exactly 225 ml of methanol in a measuring glass. Now: The biodiesel should be fully soluble in the methanol forming a clear bright phase. If not, there is pollution in the biodiesel causing you trouble with the water test. Each ml of undissolved material is corresponding to 4% by volume. Are there any undissolved material at the bottom of the measuring glass ? If there is, your reaction is not complete and this is causing you trouble with the water test. This method does not cover every aspect of quality, but it gives a hint though........ Good luck to you Jan Warnqvist AGERATEC AB
[EMAIL PROTECTED] + 46 554 201 89 +46 70 499 38 45 ----- Original Message ----- From: "Jeffrey Tan" <[EMAIL PROTECTED]> To: <Biofuel@sustainablelists.org> Sent: Thursday, August 11, 2005 2:19 PM Subject: [Biofuel] Quality Test > Hello all. Need some explanation and advise here on my experiments please. > > I have been using virgin cooking palm oil for the experiments. When > following the steps for checking on quality, I put in 150ml of de ionised > battery water and 150ml of the biodiesel obtained but the end result was > clear yellowish liquid on top and white emulsion like on the bottom. I have > done 3 different batches with the same result. My further reading and guess > is either the NaOH is too much/little or the methanol is too much/little. > My next step will probably to increase the methanol from 200ml to 400ml (my > batches are in 1 liter of new oil). Any comments or suggestions from the > gurus out there? > > Can I continue with the bubble washing process with the above 3 test > batches? > > Jeff > > _________________________________________________________________ > Express yourself instantly with MSN Messenger! Download today - it's FREE! > http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/ > > > _______________________________________________ > 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/
