1) Cause of sink stains 2) Firm tub filler 3) In which suds languish
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https://www.crosswordclues.com/clue/hard-water
Hard water is water that has high mineral content (in contrast with `soft water`). Hard water is formed when water percolates through deposits of calcium and magnesium-containing minerals such as limestone, chalk and dolomite. Hard drinking water is generally not harmful to one`s health, but can pose serious problems in industrial settings, whe......
Found on
http://en.wikipedia.org/wiki/Hard_water
Water which has a high concentration of dissolved minerals and solids.
Found on
http://www.aquahobby.com/articles/e_glossary.php
water that contains salts of calcium and magnesium principally as bicarbonates, chlorides, and sulfates. Ferrous iron may also be present; oxidized ... [3 related articles]
Found on
http://www.britannica.com/eb/a-z/h/15
Water containing Fe
3+, Ca
2+, and Mg
2+ ions, which forms precipates with soap.
Found on
http://www.chemistry-dictionary.com/definition/hard+water.php
Water containing calcium and magnesium ions and hence forming scum with soap and depositing scale in boilers, pipes, and kettles. Temporary hardness is due to calcium and magnesium bicarbonate; it is removed by boiling, which precipitates the carbonates. Permanent hardness (unaffected by boiling) is...
Found on
http://www.daviddarling.info/encyclopedia/H/hard_water.html
Water containing Fe
3+, Ca
2+, and Mg
2+ ions, which forms precipates with soap.
Found on
http://www.encyclo.co.uk/local/20728
Water that contains certain salts, such as those of calcium or magnesium, which form insoluble deposits in boilers and form precipitates with soap.
Found on
http://www.encyclo.co.uk/local/20742
<chemistry> Hard water is water which contains minerals like calcium carbonate, magnesium carbonate, bicarbonates, sulphates, or chlorides, because it has been exposed to rocks or rocky soils. ... Hard water can corrode, discolour, or deposit its minerals, in and around materials such as water pipes. ... (09 Oct 1997) ...
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http://www.encyclo.co.uk/local/20973
Water that contains certain salts, such as those of calcium or magnesium, which form insoluble deposits in boilers and form precipitates with soap
Found on
http://www.encyclo.co.uk/local/21115
Water rich in calcium.
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http://www.encyclo.co.uk/local/22291
Water that has a significant amount of dissolved calcium and magnesium ions. This water performs poo
Found on
http://www.encyclo.co.uk/local/22392
Water which contains certain minerals, usually calcium and magnesium sulphate, chlorides or carbonates in solution to the extent that a curd or precipitate rather than a lather occurs when soap is added. Very hard water may cause objectionable precipitates in some herbicidal sprays.
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http://www.encyclo.co.uk/visitor-contributions.php
water that contains dissolved compounds of calcium, magnesium, or both. Compare soft ware.
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http://www.encyclo.co.uk/visitor-contributions.php
Water with a very high mineral content. Usually this consists of calcium and magnesium ions. Hard Water occurs when the water travels over soft rock.
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http://www.masterofmalt.com/whisky-glossary/
Type: Term Definitions: 1. water containing ions, such as Mg2+ and Ca2+, that form insoluble salts with fatty acids so that ordinary soap will not lather in it.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=99634
Swimming pool chemistry: That water which is high in calcium hardness and other salts which, as such, resists soap being lathered.
Found on
http://www.poolsupply360.com/t-Understanding-Swimming-Pool-Terms.aspx
Water that contains sufficient dissolved calcium and magnesium to cause a carbonate scale to form when the water is boiled or to prevent the sudsing of soap.
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http://www.scientificpsychic.com/etc/geology-glossary.html
Water that does not lather easily with soap, and that produces ‘fur’ or scale’ in kettles, it is caused by the presence of certain salts of calcium and magnesium.
Found on
http://www.vidyagyaan.com/general-knowledge/basic-chemistry-element-terms-a
[
n] - water that contains salts that prevent the formation of lather with soap
Found on
http://www.webdictionary.co.uk/definition.php?query=hard%20water
Alkaline water containing dissolved salts that interfere with some industrial processes and prevent soap from sudsing.
Found on
https://www.encyclo.co.uk/local/20094
Water that does not lather easily with soap, and produces a deposit or scale (limescale) in kettles. It is caused by the presence of certain salts of calcium and magnesium. Temporary hardness is caused by the presence of dissolved hydrogencarbonates (bicarbonates); when the water is boiled, they are converted to insoluble carbonates that precip...
Found on
https://www.encyclo.co.uk/local/21221
Water with a high concentration of dissolved salts.
Found on
https://www.encyclo.co.uk/local/23227
No exact match found.
