TLC visualization

Andrew Kiener Follow

Ferric chloride/sulfosalicylic acid is one that I pull out occasionally for hard cases.

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Amin Tabibzada Follow

Thanks for suggetions guys, both KMnO4 and iodine worked fine and the hydrazine is kind enough to stick to start of the TLC. Another problem seems that its spot is covered by some undissolved copper so it is not clear to see. On the other hand, it seems that its consumed already while there is lot of boronic acid left in the reaction but that is another story. Gonna be fun monday I guess :-D

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Colin Banks Follow

There is an ancient but still useful book by Egon Stahl, "Thin-Layer Chromatography." There isn't anything about hydrazine in the index, however.

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Charles Thomas Follow

A new spray reagent replacing sulphuric acid in thin-layer chromatography
Tadeusz Zimiński, Edward Borowski
Journal of Chromatography A
Volume 23, 1966, Pages 480-482

"The latter reagent is prepared by dissolving 20 g of ammonium sulphate in
100ml water and adding 4 ml sulphuric acid (d = 1.84)."
Aluminium, silica gel hot plate ~400 C. Used for all non-volatile organic compounds.

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Curt Weinstein Follow

Quote from:

Quote from:
There is an ancient but still useful book by Egon Stahl, "Thin-Layer Chromatography." There isn't anything about hydrazine in the index, however.

Old is okay, but ancient? Ouch!

@kriggy
Is doubt a euphemism for failed?

Hi Kriggy,

I think you should try KMnO₄.

Ortho

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Brian Dean Follow

Quote from:

Quote from:
There is an ancient but still useful book by Egon Stahl, "Thin-Layer Chromatography." There isn't anything about hydrazine in the index, however.

Old is okay, but ancient? Ouch!

@kriggy
Is doubt a euphemism for failed?

Kind of. I tried UV and it was slightly visible but not great. Iodine stain worked fine to my surprise.

AWK: thanks, will keep that in mind

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