Originally posted by candle25
I have to say that although Spidey's method is prob right, it looks like a pain in the a$$. You gotta remember bro, we're not all a Phd in chemistry...lol. What do you mean moniter by TLC? Thin layer cromatography is a means of separating things with different polarities.
Growing Doc. I'll do a workup on the method that spidey suggested when I get home and let you know what I think. It looks pretty sound from just reading over it, and I think I recall doing something simmilar in organic lab once. Have you had experiance with TLC before? It isn't very difficult but you'll need a lot of chems & glassware for this little experiment. You will lose some product in the TLC though as I have never gotten the layers to separate completly.
PS Why didn't you just order the powders with the ester already on it?
I have to say that although Spidey's method is prob right, it looks like a pain in the a$$. You gotta remember bro, we're not all a Phd in chemistry...lol. What do you mean moniter by TLC? Thin layer cromatography is a means of separating things with different polarities.
Growing Doc. I'll do a workup on the method that spidey suggested when I get home and let you know what I think. It looks pretty sound from just reading over it, and I think I recall doing something simmilar in organic lab once. Have you had experiance with TLC before? It isn't very difficult but you'll need a lot of chems & glassware for this little experiment. You will lose some product in the TLC though as I have never gotten the layers to separate completly.
PS Why didn't you just order the powders with the ester already on it?
TLC is not only for preparative separations. Analytical TLC plates only have a 250 micron thick coating. Small plates (1" x 3 or 4") can be used to moniter reactions by placing a tiny spot of reaction mixture on one side and a tiny spot of some solution of starting material on the other side and developing the plate. By comparing the placement of the spots, you can see if any starting material remains in the reaction. Virtually none of your reaction mixture (a few microliters) is used for this procedure so no significant product is lost. A UV lamp can be used for visualization in this case since test (and test ac) is UV active.
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