Sulphamic Acid is an odorless, white, crystalline (sand-like) solid. It is used in cleaning metal and ceramics, dye manufacturing, for stabilizing Chlorine in swimming pools, in electroplating, and as a bleaching agent.
Sulfamic Acid is a white, crystalline, odorless solid. Harmful or fatal if swallowed. Corrosive to skin and respiratory tract. Can cause permanent damage to eyes.