I bought a huge rubber garbage can w/lid yesterday and planning on setting up a "molasses" barrel to put some 265 and valve covers parts in to remove rust. I located a 50 pound bag of molasses on Tractor Supply webcite for $22 bucks or so, is that the correct kind of molasses? I've read up on it some, would like to try this, what I've read says it has to be "sulfated" to work, the webcite doesn't say "sulfated or not. This ia a dry sack, thanks, Lefty.