Oh WOW. That is DEFINITELY not what I thought you were talking about. Man, honestly I'd say just dump it and start over. That looks no good and I dont know why. I've tried alot of experiments but I've never had it turn out like that. Hmmmm.
Your problem obviously lies with the MagSulf, but I dont think what was explained is what happened because mag sulfate is only a dessicant when it has the ability to grab water, and Epsom salts are sold as Mag Sulfate Heptahydrate, which already have all the water molecules attached to them... So it is my assumption that it cant be used for a dessicant without dehydrating it. But thats besides the point.
Man.. Yea. I can see everything now. I don't even know what to suggest.. I've used mag sulfate before it did make my bark grey like that, but it didnt make the WHOLE thing grey. Just the particles that dried at the top of the jar, the solution was still black though for me. so.. maybe... try adding some hot salt water? Thats all i can say. I wouldnt add any more solvent or lye to it because it most likely will end up being a failed experiment. Sorry man. Next time if you do want to use some mag sulfate(i hear it 4x stronger than salt for adding ionic strength), only use like 10g, and 10g of regular salt.
First thing you should do is decant the solvent off the top. Then add some hot salt water. Shake that up gently, and let it sit. See if any more solvent pops out. Honestly, if you decant your solvent and you get back about the same amount you put into it then I wouldnt even worry about anything else. It doesnt matter what it looks like if the job was done, right? Hahaha.
What I dont like about your jar is the fact that the base soup is actually that middle layer, which means beneath that must be some sort of mag sulfate drained bark.. Because if you notice on regular jars, the same thing happens with the 3 layers before the bark is broken down, its just all of a similar color so its hardly noticeable.
Let us know what you try to fix it and how it turns out. Good luck! lol
"I am cursed by the blossoming knowledge of my feminine ideal and she looks suspiciously like you."
"Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid." -AE