Re: [Biofuel] biodiesel pH
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/
[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/
Re: [Biofuel] biodiesel pH
Hello Josh 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? Not the same as fresh, new, unused, uncooked oil. Virgin oil is one thing with olive oil, another thing with coconut oil, but in all cases it refers to special processing or oil extraction methods. Most fresh oils are not virgin oils. When doing the titration, as the 2 solutions of oil and methanol Huh? don't mix, do i just need to keep them vigorously shaken? Also would you suggest a pH meter for this step. Newbie questions, answered many times before, and covered at the Journey to Forever website Biodiesel section. I believe you were warned about this when you joined. You're required to use the list resources please. Keith Addison Journey to Forever KYOTO Pref., Japan http://journeytoforever.org/ Biofuel list owner 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] biodiesel pH
Hi,Andrew, Seems acidic,just put some backing soda till it gets 7 +/-0,25 Luck! Rumen __ Yahoo! Music Unlimited Access over 1 million songs. Try it free. http://music.yahoo.com/unlimited/ ___ 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] biodiesel pH
Hi , I have a really clean, clear looking liter sample of finished biodiesel. The pH is 6. Is this ok or too low and if so what is a remedy. Andrew Leven ___ 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/
Re: [biofuel] Biodiesel pH
LT the biodiesel I am currently producing and all of my trial batches have been well washed and have tested pH 5.5 to 6.0. Perhaps the reference to 7.5 is in regard to the pH of the wash water. Yes the first wash waters will end up a milky colour. Washing should be repeated until the wash water is clear and has a pH of 7. This usually takes two or three equal volume washes. The milkyness is from contaminants and emulsification of a small ammount of the BD. pH meters are not at their best trying to measure either oil or water, better to use Universal Indicator solution. Paul Gobert. www.ozimages.com.au/profile.asp?MemberID=517 Yahoo! Groups Sponsor -~-- Send FREE Holiday eCards from Yahoo! Greetings. http://us.click.yahoo.com/IgTaHA/ZQdDAA/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/
Re: [biofuel] Biodiesel pH
LT the biodiesel I am currently producing and all of my trial batches have been well washed and have tested pH 5.5 to 6.0. Perhaps the reference to 7.5 is in regard to the pH of the wash water. Yes the first wash waters will end up a milky colour. Washing should be repeated until the wash water is clear and has a pH of 7. This usually takes two or three equal volume washes. The milkyness is from contaminants and emulsification of a small ammount of the BD. pH meters are not at their best trying to measure either oil or water, better to use Universal Indicator solution. Paul Gobert. www.ozimages.com.au/profile.asp?MemberID=517 Hi Paul Young master LT, ./., elite, or whatever, is no longer with us, he just unsubbed. Irked, no doubt, that his queries got ignored. Oblivious, no doubt, to the fact that he'd ignored responses from Dana, Ed, Mike, and Bryan to his previous rudenesses (Truth hurts! etc, LOL). Ah well. It's a pity, he's trying, and he came to the right place. I wasn't the only one who referred him to the archive, I hope he's managed to figure that you don't have to be a member to use it. Best Keith Addison Journey to Forever Handmade Projects Tokyo http://journeytoforever.org/ Yahoo! Groups Sponsor -~-- Send FREE Holiday eCards from Yahoo! Greetings. http://us.click.yahoo.com/IgTaHA/ZQdDAA/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/
