Re: Glycerol composition.
I used calcium oxide and potassium hydroxide in the methanol. I didn't remove the calcium oxide and calcium dihydroxide prior to doing a room temperature transesterification reaction on new corn oil. I got glycerol fall out but an excess of strong base. In the soap test I used up all my weak hydrochloric acid testing for soap. Removing the finely divided calcium hydroxide and calcium oxide from the methanol seems to be correct. My room temperature biodiesel product is transparent yellow. I expect calcium soap is present (that's bad).
I used calcium oxide and potassium hydroxide in the methanol. I didn't remove the calcium oxide and calcium dihydroxide prior to doing a room temperature transesterification reaction on new corn oil. I got glycerol fall out but an excess of strong base. In the soap test I used up all my weak hydrochloric acid testing for soap. Removing the finely divided calcium hydroxide and calcium oxide from the methanol seems to be correct. My room temperature biodiesel product is transparent yellow. I expect calcium soap is present (that's bad).
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