Sorry, there is a confusing definition error in the formula: m1 = is the amount of undissolved material as a result of the test. m2 = the amount of biodiesel put into the reaction
m3 = is the amount of biodiesel soluble in methanol in % All the best Jan ----- Original Message ----- From: "Keith Addison" <[EMAIL PROTECTED]> To: <biofuel@sustainablelists.org> Sent: Monday, June 04, 2007 6:44 PM Subject: Re: [Biofuel] Meth test (was Off topic) > Greetings Jan > > Sorry for the late reply. > > Just to add my vote of thanks - the methanol test is simple and > useful, it's helped a lot of people. > > I'd like to add this development to the quality testing section at > Journey to Forever, would you agree? > > All best > > Keith > > >>Dear all. I am very flattered that my methanol method had so much >>attention. Here is a development of the method: >> >>Equipment needed for the analysis >> >>1. One 250 ml separatory funnel >>2. One 400 ml beaker (Figure 2) >>3. One magnetic stirrer >>4. Balancer with 0,05g acc. >>5. One 50 ml narrowed neck E-flask >> >>Chemicals for the analysis >> >>1. Water free methanol, min 225 g >>2. FAME with water content less than 500 ppm, clear, bright and >>without visible impurities, min 25 g >> >>Take the clean beaker and put exactly 225 g of methanol in it. Then >>add exactly 25g of the biodiesel. Stir the fluids on the stirrer for >>2 minutes. Take the beaker off the stirrer ans pour the content into >>the separation funnel.Take the clean e-flask to the balancer and >>tarate with the flask. Let any oil phase separate out from the >>biodiesel/methanol phase and put it in the e-flask. Weigh the >>content and calculate the result: >> >>1 - m1/m2 = m3 >>where m1 is the mass of the biodiesel >>m2 is the amount of methanol >>m3 is how much of the biodiesel put in that is consisting from methyl >>esters. >>The method will show huch much of the material by mass that is >>soluble in methanol. This includes mostl mono- and diglycerides. The >>residue consists therefore mostly from unreacted oil. >> >>With best >>Jan Warnqvist > > > _______________________________________________ > 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/
