My eyes hurt from reading.
It is mentioned everywhere, even on the biodiesel tutorial, that glycerin pre-treatment will lower water content of WVO yet I haven't found any sandy brae tests confirming this. A carbide manometer would be useless since carbide reacts quickly with methanol.
Here I am sooty, a man to the rescue.
Tests by my s/b and k/f
Water in my well settled oil 800 to 900ppm
After glyc washing 350ppm
Water content of the glycerol used in these tests 1 to 4% I don't know what the water content of the glycerol would have to be to reduce it's affinity for water but obviously higher that the stuff I used.
That said the question does beg; why do we bother getting the oil nice and dry when we add so much water in the methoxide mix?
Thank you Dgs.
The fact had been repeated so often I thought it would be easier to find.
I WBD and wondered if my methanol poor glycerin would be worth using to dry my oil, which titrates at 0.8 so little need to lower that.
I like tossing it into a warmed batch of WVO and letting it settle, dealing with the hardened sludge in the fall.
But water in methoxide, yes it is several times higher PPM than our WVO. Woooh lots of heated posts on that one: qicklime, cement etc.
I tried drying it with salt, bentonite and lastly microsieve but couldn't test them with my carbide manometer.
I still add microsieve to my recycled meth "on faith" that it works since it leaves just enough suspended powder to make a Tralles measurement off.
When does Sodium Methylate become more cost/time effective than trying to improve our home brews of Lye and Methanol?
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