Pros:
* Effective cleaning: Sulfamic acid can remove oxides and other impurities from copper surfaces.
* Less corrosive than other acids: Sulfamic acid is less corrosive than hydrochloric acid (muriatic acid), a more common copper cleaner.
Cons:
* Not as efficient as other options: Other acids like citric acid or phosphoric acid are generally more effective at cleaning copper.
* Safety concerns: Sulfamic acid is still an acid and requires proper handling and safety precautions.
Alternatives:
* Citric acid: A common and safe option for cleaning copper. It's readily available and can be used to make a homemade cleaning solution.
* Phosphoric acid: A stronger acid that can remove stubborn tarnish and oxides. It's often used in commercial copper cleaning products.
Recommendations:
* If you're looking for a safe and effective way to clean copper, citric acid is generally the best choice.
* If you decide to use sulfamic acid, handle it with care and follow proper safety guidelines. Wear gloves and eye protection, and work in a well-ventilated area.
In summary: Sulfamic acid can be used to clean copper, but it's not the most common or recommended method. There are safer and more effective options available, like citric acid or phosphoric acid.