I have a few questions on 2,5-DMBA ( aka 2,5-dimethoxybenzaldehyde )
1) Is it hygroscopic ? MP affected by water content ?
2) Shelf life, best way to store ?
3) If it looks like flat flakes, opaque white, a bit yellow, is it OK ?
4) If water is a concern, best way to dry it ( I hope it is not ).
5) Is 2,5-DMB = 2,5-DMBA = 2,5-dimethoxybenzaldehyde ?
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Sorry, I mean MP, not BP. Post edited already. Also added one dash. Since it seems to be non-hygroscopic, I assume water is not a concern.
THX, W.
> 1) Is it hygroscopic ?
No.
> BP affected by water content ?
Why do you want to boil it?
> 2) Shelf life,
Depends. Probably years.
> best way to store ?
Cool, dry, dark, tightly closed glass bottle.
> 3) If it looks like flat flakes, opaque white, a bit yellow, is it OK ?
Probably yes.
> 4) If water is a concern, best way to dry it ( I hope it is not ).
Vacuum desiccator.
I mean MP, not BP. Post has been edited.
The MP is 52° Celcius
And the mp will definitely be affected by water content as well as other impurities.
5) yes
Post 424493 (https://www.thevespiary.org/talk/index.php?topic=10721.msg42449300#msg42449300)
(GC_MS: "2,5-dimethoxybenzaldehyde and auto-oxidation", Newbee Forum)