Sulfamic acid is used as an acid cleaning agent, sometimes pure or as an exclusive mixture component, usually for metals and ceramics. This is often used to remove rust and limescale, replacing hydrochloric acid which is more volatile and irritating, which is cheaper. This is often a component of household crust agents, for example, Lime-A-Way Thick Gel contains up to 8% sulfamic acid and has a pH of 2.0-2.2, or detergent used to remove limescale. When compared to most common strong mineral acids, sulfamic acid has the desired properties of water crust, low volatility, and low toxicity. It forms water-soluble calcium and iron salts.
It also found applications in cleaning the milk equipment industry and brewery. Although it is considered less corrosive than hydrochloric acid, corrosion inhibitors are often added to commercial cleaners which are components. This can be used to clean coffee house crusts and espresso machines and denture cleaners.
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www.grahachemical.co.id
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