Tetrahydrofuran Azeotrope?
Hello everyone!
I got some pvc primer from DoIt, and the container says it contains acetone, THF, MEK, and cyclohexanone. I am fractionally distilling it as we speak.
I slowly heated it until the thermometer at the top read 56 C, the boiling point of acetone. It stayed constant for a long time, then the drops ceased
so I cranked up the temperature. As we speak, the still's temp reads 63 C, and a BUNCH of liquid is coming out. I thought it is THF... but then I
tested it for a ketone by adding NaOH and iodine, and CHI3 formed  ... Does THF
form an azeotrope with anything else? THere is no contaminates that I can think of! Why is there a ketone there?
By the way, is there a way to qualitatively test for THF?
Thanks,
SciHide
P.S. I am distilling over ferrous sulfate to avoid peroxides
hey, if you are reading this, I can't U2U, but you are always welcome to send me an email!
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