Hi Keith
This is probably the best stuff avalable in my small town, as it is from a
food shop renound for quality food. Yes I did mean deacidification as per
JTF site.
I have 80 litres in 4 drums, I took three samples heated them to test for
water and carried out the test three times I even tried different isoprpyl
as some of what I had was quite old, but still the same result. I then
tested some oil from a friends home frier and found it to be around 3.5grpl,
them a further test on brand new SVO and only 1 drop caused a change to
pink?
Given that my testing is accurate should I persisit with single stage or try
deacidification?
The only 2 things that I question of my testing is the 1/1000 mixture was
cold, although the test was carried out with the beaker standing in warm
water and the phenolphalein was made up with Ethanol?
Your thoughts would be appreciated
Cheers
Ian
----- Original Message -----
From: "Keith Addison" <[EMAIL PROTECTED]>
To: <Biofuel@sustainablelists.org>
Sent: Thursday, August 18, 2005 8:35 AM
Subject: Re: [Biofuel] deacidification
Hello Ian
Hi Guys
I've just tested the WVO I've managed to obtain and tested out at 6grpl
this plus 3.5 makes 9.5. Is this a candidate for deacidification?
What do you mean by deacidification? Do you mean using an acid-base
process instead of a single-stage base process, or do you mean this, or
something similar?
Deacidifying WVO
http://journeytoforever.org/biodiesel_make2.html#deacid
Deacidification is a standard step in processing raw (new) oils for sale
and consumption. The deacidifying process above is basically the same but
without the need for a centrifuge.
If you mean an acid-base process, any oil is a good candidate for that.
Anyway, oil titrating at 6 g/l is probably borderline for a novice
attempting his first test batch with WVO. "Standard" WVO, if there is such
a thing, is usually considered as around 3-3.5 titration. Try it if you
like but you might struggle.
Strictly speaking, it shouldn't be 6grpl but 6 ml of 0.1% NaOH solution,
which indeed translates to 9.5 grpl. How did you titrate it?
Best wishes
Keith
Cheers Ian
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