Author Topic: 2,5-DMBA  (Read 749 times)

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wolfx

  • Guest
2,5-DMBA
« on: September 29, 2003, 12:45:00 AM »
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.

Osmium

  • Guest
> 1) Is it hygroscopic ? No.
« Reply #1 on: September 29, 2003, 01:02:00 AM »
> 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.


wolfx

  • Guest
Post edited
« Reply #2 on: September 29, 2003, 02:22:00 AM »
I mean MP, not BP. Post has been edited.

Vaaguh

  • Guest
MP
« Reply #3 on: September 29, 2003, 12:52:00 PM »
The MP is 52° Celcius


Rhodium

  • Guest
water affecting mp
« Reply #4 on: September 29, 2003, 01:47:00 PM »
And the mp will definitely be affected by water content as well as other impurities.

weedar

  • Guest
answer
« Reply #5 on: September 29, 2003, 06:28:00 PM »
5) yes


GC_MS

  • Guest
UTFSE for 4
« Reply #6 on: September 29, 2003, 07:35:00 PM »

Post 424493

(GC_MS: "2,5-dimethoxybenzaldehyde and auto-oxidation", Newbee Forum)