Limescale remover

The inside surface of the dishwasher becomes covered with residue over time. These residues include lime scale, soap scum, and food deposits. The removal of lime scale from the dishwasher has been the main concern of patent inventions, because lime scale residues deposit on the heating elements and reduce the overall heat exchange of the systems. However, soap scum and food deposits have also been seen as a problem because these can redeposit on the dishes as well as reduce the effectiveness of the detergent. In 2006, Binder obtained a patent that reportedly targets all three types of deposits left in the dishwasher. The detergent tablet contains 10-75% of a limescale remover acid, 11-20% nonionic surfactant, and from 0 to —5% of a detergency enzyme. 

Formic acid is also used in place of mineral acids for various cleaning products, such as limescale remover and toilet bowl cleaner. Some formate esters are artificial flavorings or perfumes. 

Nevertheless, it should be made clear that the limescale has not been removed, but merely trapped in nanocrystals and total evaporation will still result in limescale deposits. 

Limescale rust removers Hydrochloric acid Corrosive, eye and skin irritant. Also found in toilet cleaners, metal polishes. 

Dilute solutions of acetic acids are also used as a stop bath during the development of photographic films, and in descaling agents to remove limescale from taps and kettles. In the clinical laboratory dilute acetic acid lyse red blood cells in order to facilitate microscopic examination. 

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