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Descaling can also cause erosion and dezincification of brass, causing the brass to leach lead which is thereby released into potable water lines. Descaling of steam boilers such as those found in espresso machines can be difficult as the boilers do not fill completely and the descaling agent is
238:" acids that inhibit the corrosive effect of the acids on various materials. Approximately 10% concentrated hydrochloric acid with a corrosion inhibitor and some added penetrating and wetting agents added is typical. This allows for a better cleaning of machinery and especially
78:. Glass surfaces may also exhibit scaling stains, as can many ceramic surfaces present in bathrooms and kitchen, and descaling agents can be used safely to remove those stains without affecting the substrate since both ceramics and glass are unreactive to most acids.
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of the solution provided. Hydrochloric acid is much stronger than acetic acid, for example, and therefore tends to remove scale faster. Weak acids such as acetic or citric acids may be preferred, however, where damage to the substrate is to be minimised.
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and other contaminants. These additives reduce the corrosion on the metals and cut through and loosen these other materials mixed with the scale for faster and more thorough cleaning.
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unable to reach the top of the boiler. If this problem occurs the device's safety valves, probes, and pressure sensors may not be cleared of limescale.
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Limescale build-up inside a pipe reduces both liquid flow and thermal conduction from the pipe, so will reduce
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to the eyes and skin and can also attack and degrade clothing fibres, so appropriate protection such as
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74:. Limescale is either white or brown in colour due to the presence of
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from metal surfaces in contact with hot water, such as in
218:. The speed of the descaling action depends on the
27:Substance used to remove limescale from surfaces
147:Strongly acidic descaling agents are usually
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323:. John Wiley & Sons. pp. 571–572.
361:Heating, ventilation, and air conditioning
102:compounds present in the scale, producing
210:are soluble and thus washed away during
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307:, Wiktionary, Accessed January 14, 2014
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162:should be used in cleaning operations.
242:because often the scale is mixed with
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234:Many companies offer inhibited or "
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174:Notable descaling agents include
134:(s) + 2 H (aq) → Mg (aq) + CO
115:(s) + 2 H (aq) → Ca (aq) + CO
86:Descaling agents are typically
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351:Chemical process engineering
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106:gas and a soluble salt.
261:Dealkalization of water
317:Stanga, Mario (2010).
256:Central heating system
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94:that react with the
100:magnesium carbonate
90:compounds such as
56:chemical substance
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36:thermal efficiency
204:hydrochloric acid
96:calcium carbonate
92:hydrochloric acid
52:chemical descaler
16:(Redirected from
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212:dissolution
192:lactic acid
188:formic acid
180:citric acid
176:acetic acid
345:Categories
305:"Descaler"
292:References
266:Hard water
170:Acids used
276:Limescale
271:Hydronics
216:solvation
149:corrosive
60:limescale
356:Plumbing
250:See also
236:buffered
224:acidity
157:plastic
138:(g) + H
119:(g) + H
72:kettles
64:boilers
18:Descale
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244:silica
206:. The
160:aprons
88:acidic
82:Action
70:, and
142:O (l)
123:O (l)
325:ISBN
222:and
202:and
155:and
130:MgCO
111:CaCO
98:and
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50:or
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228:pH
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