Hi, I am in the middle of an extraction at the moment and I made a, hopefully, minor mistake. I accidentally sucked up some MgSO4 with my anhydrous acetone that I used for fasa on some jungle spice. Overnight I am letting the dmt-fumarate settle to the bottom.

My original plan was to
-decant fasa
-dry jar completely
-dissolve dmt-fumarate in minimal water and pipette from jar to test tube (this will pick up a bunch of MgSO4 though)
-add small amount NaOH to water and completely dissolve into water (a quick google search showed that NaOH reacts with MgSO4 to form sodium sulfate and magnesium hydroxide, I do not have any significant formal chemistry knowledge so I can not comment though)
-pull with heptane
-pull with xylene

I have no clue what I should do in this position, is there any way I can save this mess? A LOT of time and energy went into it.

Edit: Alright, after a little research and thinking I've come up with this:

Magnesium hydroxide (milk of magnesia) is "practically" insoluble in ethanol.
Sodium sulfate is insoluble in ethanol.
DMT-freebase is very soluble in ethanol.
Sodium hydroxide is insoluble in xylene and heptane and very soluble in water.

Instead of continuing on with the tek in the above manner, could I stop before I pull with heptane and...
-wait for freebase to drop out of the water/NaOH solution and settle to bottom of test tube.
-decant water containing NaOH
-dry completely
-add ethanol
-decant off the ethanol
-evaporate ethanol
-continue to pull with xylene/heptane

If my understanding is correct, that should be able to clear everything except trace amounts of magnesium hydroxide. It should be noted that magnesium hydroxide doesn't decompose until 350*C and my DMT does not plan on getting that hot. Am I be safe basically?

Also, I do not have access to anhydrous ethanol at the moment. I do however have access to more MgSO4 and ever-clear (195 proof). Could I make the ever-clear anhydrous by letting it sit with some anhydrous MgSO4?

That contam is safe. You're overthinking this.
You could clean up the fumarate and use it as is.
If you really want freebase, you can continue as is. It would be better to use sodium carbonate and acetone. No need to involve naptha or xylene at this point.

And yes, you can use the MgSO4 on everclear, but keep in mind it is very hard to get that last bit of water out.

Alright, that's good to hear.

Another question though. I can not find any info on whether or not sodium sulfate (Na2SO4) is soluble in acetone, but it is insoluble in ethanol. Generally, if something is not soluble in ethanol, will it be soluble in acetone?

Pure ethanol and acetone generally work the same, especially for salts. One is more selective for some things, and vice versa. For this purpose though, it needs to be as pure as possible, or the water in it will pick up salts. It's not that big of a deal though.

Na2SO4 is a salt, so it would probably not dissolve in ethanol or acetone.

Don't worry about it.

I forgot to mention that for FASA, some dry MgSO4 in the container will keep the acetone dry. It settles to the bottom after awhile, and the solution becomes crystal clear, just use it off the top. I wouldn't be surprised if some was still suspended when I use it, but I don't worry about it. I've seen others mention that they do this, on FASA and straight acetone, in the actual container or with a THP. Just for insurance.

A tight cotton ball in a funnel would filter it out of the acetone, which is something you should always do before it is dried anyway, on something or not.

Yes, I know that. This is my first extraction and I made a newb mistake basically.

I had barely enough fumaric acid to do this extraction and I got ahead of myself and dumped the fumaric into a jar of hydrated acetone. I then added MgSO4 to the container along with the fumaric acid/acetone and proceeded with the fasa before realizing what I had done.