Converting freebase to fumerate using IPA instead of acetone?

[MachineElf88]

Would this work? -

Saturate IPA with fumaric acid in one container and then dissolve dmt into IPA in another, then mix them together.

 

[Vodsel]

Yes, it would. FASI refers to IPA. But you might want to dry your IPA before with magnesium sulphate or other suitable drying agent, to remove any amount of water before dissolving DMT in it.