Before revision: "Descaler", Wiktionary, Accessed January 14, 2014 Descaling agents are typically acidic compounds such as hydrochloric acid that react with the calcium carbonate and magnesium carbonate compounds present in the scale, producing carbon dioxide gas and a soluble salt.
After revision: Action"Descaler", Wiktionary, Accessed January 14, 2014 Descaling agents are typically acidic compounds such as hydrochloric acid that react with the calcium carbonate and magnesium carbonate compounds present in the scale, producing carbon dioxide gas and a soluble salt.