My nephew and niece are visiting this weekend, and I started thinking about kids and bubbles (I know it is the wrong season).
It turns out that most bubble recipes use some kind of a detergent, and glycerin.
Of course, many people get kind of uptight around their children, so safety is important... No Methanol & etc.
But, if you recovered the methanol, neutralized it with acid to knock out the FFA's. Knocked out the methanol a second time, then checked the pH.
You could give it away by the gallon to local schools, kids groups, and community groups. Of course, a gallon of glycerin will make a lot of bubbles, but kids can blow through a lot of bubbles too!!!
Perhaps there would be a way to use the crude glycerin to make 100% of the bubble solution, or at least making your own soap and your own glycerin.
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