Many jewelers use amonia. I am not sure what all is in commercial grade ultrasonic solutions, but whenever I have worked out a shop we have used the blue liquid in the ultrasonic because it is an effortless way to clean. I found the more concentrated dish has a similar ability to clean off tripoli and rouge from my hands, and so I use on my metals because it is non abrasive. I am not the only soap user, I have seen it used in studio classes, too. Just a thought though, don't wear your jewelry when you wash dishes, your hands, take a shower, put on lotion, or participate in any activities that get your hands really dirty. The chlorine in water will slowly eat your solder joints particularly on retipped prongs. Plus you won't get as much dirty build up as fast.