Soaking it in kerosene will wash out the innard internal lubed up goo stuff and will soak in and wreak havoc with the chain innards.
Just clean it up with a judicial amount of cleaner with an old toothbrush, or you could use your good toothbrush, just wash it off with kerosene.
Four out of five dentists surveyed recommended stiffer bristles when you clean your chain, the results are dazzling !
