Touche Guevara said:
A friend just called me and said he's having trouble with Phlux-'s "best alternative to gassing" tek. Says after adding the anhydrous HASA to the limonene, he's getting separation of layers with some bubbles in between.
I told him he probably didn't dehydrate the HASA enough. Can anyone speculate as to whether that's probably what happened? Assuming the presence of layers equates to the presence of H2O. How long should the HASA be mixed with anhydrous Mg2SO4? Is there a visual cue to tell when it's properly dehydrated?
Gratitude and best wishes!
Does your friend has specifics on the amount of materials he used? e.g. how much HCl solution of what percentage in how much acetone and how much magnesium sulfate was added?
It is a matter of a couple of straightforward calculations to find how much MgSO4 to add to ensure the minimum amount of water present. Just remember that anhydrous magnesium sulfate absorbs its own weight in water. What your friend sees is most likely water and limonene and emulsion maybe?