I find gas soluabilities absolutely fabulous.
When 1 volume 40% meam was added to 4 volumes methanol why would the stir bar have bubbles forming on it after a few minutes? Given that methanol alone can hold up to 40% MeAm on its own shouldn't the gas have stayed in solution? The methanol was either reagent or HPLC grade >99%. I would think since you have 2 solvents that both can hold 40% meam gas at room temp that adding one to the other would increase soluability of the gas within the two. The temp of the mix was ~25c.
At the same time, without creating a new post I don't see the point in trying to gas methanol with meam since the solution will be so cold that the container will condense quite a bit of water in only 10 minutes. So, when this happens your going to have to dry the methanol anyway. The problem I'm curious about is when drying the methanol after gassing or addition of aqueous meam is: who really knows the truth behind how much gas actually stays in the solution? I'm reading one bee wrote running the solution through a column packed with MgS04/silica beads and then other's stating that the mgs04 will not only take the water out but most of the meam gas in that water too. I've found somewhere on the net where it stated the mgs04 will absorb water first followed by alcohols and amines. But does anyone know just how much if any is lost in the filter cake? It makes no sense to me that when you got 4x volume methanol able to hold 40% gas, why the filter cake should be holding any gas at all. Shouldn't it all dipserse uniformily?
Today, at the auto body shop I found 2 45kg empty barrels of this:
http://www.oxychem.com/products/msds/m31867_EU_UK.pdf
It's the first time I've seen a label (on the drum it said this) "Potassium hydroxide, Anhydrous, meets USP and food codex"
How can they claim anhydrous when the msds says 90%?
JIHAD!