I have a container that is filled with all my used solvents. (Mineral spirits, Acetone, Iso-P Alcohol, perhaps some white/Naptha gas, Gasoline, and lacquer thinner. Quite the blend of stinky stuff. (On occasion when all the heavy crap in the blend settles, I will pour the used solvent through an old microfiber cloth to keep it somewhat filtered)
I pour some of this saved solvent crap into a SST bowl, add the chain, sluice it around a few times, and then let the chain soak for a while. Then I remove the chain, and link and take it to a sink where I spray it with a higher percentage mix of "Awsome" cleaner, then put it in almost boiling water. After the chain is clean, I blow it off with compressed air. Then it is dipped in my pan filled with my melted 'Baby Bell" wax.