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Limescale build-up inside a pipe reduces both liquid flow and thermal conduction from the pipe, so will reduce thermal efficiency when used as a heat exchanger.. A descaling agent or chemical descaler is a liquid chemical substance used to remove limescale from metal surfaces in contact with hot water, such as in boilers, water heaters, and kettles.
Limescale is a hard, chalky deposit, consisting mainly of calcium carbonate (CaCO 3). It often builds up inside kettles , boilers , and pipework, especially that for hot water. It is also often found as a similar deposit on the inner surfaces of old pipes and other surfaces where hard water has flowed.
Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water requires less soap for the same cleaning effort, as soap is not wasted bonding with calcium ions. Soft water also extends the lifetime of plumbing by reducing or eliminating scale build-up in pipes and fittings.
Screwfix Direct Limited, trading as Screwfix, is a retailer of trade tools, accessories and hardware products based in the United Kingdom. [6] Founded in 1979 as the Woodscrew Supply Company, the company was acquired in July 1999 by Kingfisher plc , which also owns B&Q , and is listed on the London Stock Exchange .
It is frequently used for removing rust and limescale, replacing the more volatile and irritating hydrochloric acid, which is cheaper. It is often a component of household descalant, for example, Lime-A-Way Thick Gel contains up to 8% sulfamic acid and has pH 2.0–2.2, [12] or detergents used for removal of limescale.
May 2012) (Learn how and when to remove this message) Calcium Lime Rust , more commonly known as CLR , is a household cleaning product used for dissolving stains, such as calcium , lime , and iron oxide deposits.
The most difficult scales to remove are those of Barium sulfate because of its high insolubility forming very hard scale deposits. A general representation of the reaction is summarized in reaction: 5. M 2+ (aq) + SO 4 2− (aq) → MSO 4(s) Sulfate scale usually forms when formation water and injected seawater mix together. [2]
Its main retail brands are B&Q, Castorama, Brico Dépôt and Screwfix. [28] The companies now part of the Kingfisher group are: B&Q; operations in the United Kingdom and Ireland; Brico Dépôt; in France, Spain, Portugal and Romania; Castorama; in France and Poland; Koçtaş; 50% joint venture in Turkey; Screwfix; in the United Kingdom and Ireland
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