>Thanks Keith. Though I must clear out something... I was talking of HCl,
>Hydrochloric acid, not Nitric Acid (HNO3), which I do understand is a main
>chemical in the synthesis of various explosives (a friend of a close friend
>of mine did pass away in a lab explosion some years ago).

Yep, sorry, 'twas a bit late in the night - please see correction posted later.

>The reference to HCl was found in the Morrison & Boyd book on organic
>chemistry (I think it`s Prentice, or Mc Graw)

If you get any positive results with HCl, please let us know.

>One thing more, somewhere in journeytoforever it said small batches 
>were exothermic enough
>to maintain the temperature close enough to 55 ¼C. If so, up to what volume
>is this true?

I doubt it - you'll have to find the reference please. The exothermic 
reaction's over by the time the methoxide's properly mixed and you 
add it to the oil, I don't see how it could have any effect on 
maintaining the process temp.

Mike Pelly says this, in discussing Test batches:

"Start by mixing up the lye and methanol in a blender (one that will 
never be used for food again). First make sure the blender and all 
utensils used are dry. Forming the exothermal sodium methoxide polar 
molecule will heat up the blender container a bit. Keep mixing until 
all the lye has been dissolved."

He certainly doesn't say it provides enough heat for the 
transesterification process itself. Anyway his test batches are with 
one litre of WVO, the methoxide uses only 150 ml of methanol and 6.25 
g NaOH, not very much heat there. I suggest you read it all again.

http://journeytoforever.org/biodiesel_mike.html
Biodiesel recipe from Mike Pelly

Best wishes

Keith Addison
Journey to Forever
Handmade Projects
Tokyo
http://journeytoforever.org/

 
>Thanks for the advice & concern.
>
>Regards,
>
>Christian


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