We are using a pH meter (& visual) methods during our titration to determine the ffa%. It is very frustrating since the pH meter readings are very inconsistant. Our current ffa% is 1.6% and we are trying to reduce it to .5% by acidification. Any comments on methods for determing the ffa%? Thanks Colton > How were you able to know that your ffa's increase? > If you are just using a pH meter, it is but natural that the pH will fall > since you are using a strong acid H2SO4. > If you are titrating with NaOH, H2SO4 will eat up a considerable amount of > lye. > > Christopher > > =>-----Original Message----- > =>From: Orion Polinsky [mailto:[EMAIL PROTECTED] > =>Sent: Tuesday, August 05, 2003 8:53 AM > =>To: biofuels-biz@yahoogroups.com > =>Subject: [biofuels-biz] reducing ffa's > => > => > =>hi all, > => > =>I am trying to convert my free fatty acids to > =>esters by acidification using methanol and > =>H2SO4. Unfortunately, each time I try it, my > =>ffa level increases. > =>Is there anyone out there with a good > =>acidification recipe? > =>thanks, > =>Orion > => > => > =>summa scientia nihil scire > =>Help the planet each day! It's free and easy: > =>http://www.Care2.com/dailyaction/ > => > => > => > =>Biofuels at Journey to Forever > =>http://journeytoforever.org/biofuel.html > =>Biofuel at WebConX
> =>http://webconx.green-trust.org/2000/biofuel/biofuel.htm > =>List messages are archived at the Info-Archive at NNYTech: > =>http://archive.nnytech.net/ > =>To unsubscribe from this group, send an email to: > =>[EMAIL PROTECTED] > => > => > => > =>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > => > => > > > > > Biofuels at Journey to Forever > http://journeytoforever.org/biofuel.html > Biofuel at WebConX > http://webconx.green-trust.org/2000/biofuel/biofuel.htm > List messages are archived at the Info-Archive at NNYTech: > http://archive.nnytech.net/ > To unsubscribe from this group, send an email to: > [EMAIL PROTECTED] > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > ------------------------ Yahoo! Groups Sponsor ---------------------~--> Buy Ink Cartridges or Refill Kits for Your HP, Epson, Canon or Lexmark Printer at Myinks.com. Free s/h on orders $50 or more to the US & Canada. http://www.c1tracking.com/l.asp?cid=5511 http://us.click.yahoo.com/l.m7sD/LIdGAA/qnsNAA/9bTolB/TM ---------------------------------------------------------------------~-> Biofuels at Journey to Forever http://journeytoforever.org/biofuel.html Biofuel at WebConX http://webconx.green-trust.org/2000/biofuel/biofuel.htm List messages are archived at the Info-Archive at NNYTech: http://archive.nnytech.net/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
