Jabel's ZSM-220 is a zinc sulfamate, an inorganic compound used as an electrolytic plating and anodizing additive. It is also known as zinc sulphamate, zinc sulfomethanesulfonate or zinc sulfamate monohydrate. ZSM-220 is a white powder with a molecular weight of 175.33 g/mole and a density of 1.93 g/cm3. It has a solubility of 4.99 g/L at 25°C and is insoluble in alcohols, ethers, and hydrocarbons. ZSM-220 can be used in zinc and zinc alloy plating applications and provides excellent brightness, improved leveling, and more uniform deposition. ZSM-220 is also suitable for anodizing, especially when used with chromates and sealers, to provide superior protection against corrosion and discoloration.