----- Original Message -----
From: "Keith Addison" <[EMAIL PROTECTED]>
Subject: Re: [biofuel] Re: Biodiesel,Glycerine pretreat
> >----- Original Message -----
> >From: "t_watchornnz" <[EMAIL PROTECTED]>
> > > The SG results form my tests with pre-treated oil are as follows.
> > > Note all are unwashed except for the normal brew sample:
> > >
> > > Test 1, 20 mil (8%) methanol. SG 0.9111
> > > Test 2, 25 mil (10%) methanol. SG 0.9051
> > > Test 3, 32 mil (13%) methanol. SG 0.9036
> > > Test 4, Same as test 2 using another mix of preteat oil. SG 0.9056
> > > My normal brew using 17% meth and titration + 1.4 grams. SG 0.8946
> >(snip)
> >SGs all a bit on the low side indicating only partial
transesterification.(Paul).
>
> High side? :-/ Have I got it all wrong?? Maybe if I stand on my
> head... No, surely it should be on the high side.(Keith).
(snip)
You are right there Keith I should have said that the high SG figures
indicated partial transesterification.
> By the way, re that typo where it said WVO when it should have said
> tallow, no, it seems I can't change it for the sake of the archives.
> Seems all I can do is delete messages, not alter them. That's good! -
> just as it should be. I didn't realise I'd never actually tried it
> before. Anyway, best to post a correction I guess. Sorry, that took
> me a bit of time!(Keith).
(snip)
Think I may have posted a correction shortly after. Correction at this stage
could be difficult to tie to origional. Lists with topica seem to have an
advantage here with the author able to modify/update/delete their postings.
>What are you using to check SG? (Keith).
I use a 100ml volumetric flask and an electronic ballance accurate
to 3 decimal places.
>Temperature corrections?(Keith)
Have recorded temps and have correction formula but yet to
calculate.
Seasonally temp varies from 15 to 35 deg C in the lab, quite a pleasant 26
deg C at moment.
> By the way, do you have SGs for VO and WVO? - averages? (Keith)
Have SG and viscosities for Vegetable Oils (Purchased from
supermarket) will post figures this afternoon.
Regards Paul
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