well, for starters, you COULD have actually found some oil that is just that awful (that it needs at least 15 ml to turn the titration pink). THave you tried this with a samplpe of a different oil? the filtering won't do anything for FFA (free fatty acid- the chemical you're "looking for" in the titration is called free fatty acid). FFA is soluble in oil and can't be filtered out by ordinary means. Try this with a different oil if you haven't yet, and then report back. you'll probably be asked to give more details about how you're doing the titration so that we can troubleshoot what you're doing if it doestn' work still. the answer to 'how do you know if the WVO is good enough to work with?" is that the titration tells you the answer (it tells you about free fatty acids), and then also testing for water by heating up a sample and seeing if you see any boiling or bubbling at 212F is the other.. No matter how bad the oil is you should be able to at least do a titration on it so that's the basics to figure out.
--- In biofuel@yahoogroups.com, "DougL" <[EMAIL PROTECTED]> wrote: > I have been working on the biodiesel for a few weeks now going step by step from Mike Pelly's recipe on the net that I found. Hoping that you can clarify a few things for me. > When we are doing the titration, after we add approx 15 ml of the lye/water solution(as opposed to the 1.5-3 ml as mentioned in the directions)- the mixture is very milky and just turning pink. It is not clear and purple like in the pictures. We are wondering if our WVO is not filtered enough. We boiled it for about a half hour to boil water off and then tried filtering it a little but it is still choclatey brown. > How do we know if the WVO is a good batch to work with or not? > What is the most effective way to filter it? > Any other tips to get us along our way? > Doug Loewen > (780) 777-7526 > [EMAIL PROTECTED] > > [Non-text portions of this messag ------------------------ 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/mOAaAA/3exGAA/qnsNAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/ 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/
