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Author: Subject: purity of vanillin for tlc stain
soma
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[*] posted on 26-9-2016 at 03:27
purity of vanillin for tlc stain


I'm planning on trying vanillin as a tlc stain. I've found some 98% vanillin available and also 100%. The 98% is alot cheaper.

I'm wondering if the purity makes much difference?
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Sulaiman
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[*] posted on 26-9-2016 at 05:09


vanillin is used as a melting point temperature reference
so it is probably easy to purify, by recrystalisation from water,
then check its melting point.




CAUTION : Hobby Chemist, not Professional or even Amateur
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ziqquratu
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[*] posted on 26-9-2016 at 15:15


98% will be more than sufficient for the job.
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Ozone
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[*] posted on 26-9-2016 at 17:28


Agreed. I've had decent results with tech grade. You should always run a standard (or surrogate compound) just to be sure; you need the RF, anyway.

O3




-Anyone who never made a mistake never tried anything new.
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