Dear of troy: Organic compounds are those containining carbon and hydrogen. Originally it was thought that the coumpounds in living matter were special, and could not be made synthetically. Salt, having no carbon, is not an organic compound. And anyway we eat far more sugar than salt. Of course the tons of salt used for non-food purposes might outweigh the sugar consumed.
Dear WW: I remember seeing in the salt thread that it was named after a place somewhere in Asia Minor.
Too much work to tempt me to look it up.