soft water

Water containing little or no dissolved salts of calcium or magnesium, especially water containing less than about 85 parts per million of calcium carbonate.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Soft Water

Either pure water or water containing salts that do not react with soap to form insoluble soap scum. Before the use of water-softening chemicals, the primary source of soft water was from rain, and rainwater was often caught and saved in washtubs or barrels.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

soft water - water that is not hard (does not contain mineral salts that interfere with the formation of lather with soap)

H2O, water - binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent

hard water - water that contains mineral salts (as calcium and magnesium ions) that limit the formation of lather with soap

Translations

Süßwasser

acqua dolce

soft water

n → acqua non calcarea, acqua dolce

Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

Mentioned in

References in classic literature

At every half-mile a groaning water-wheel lifted the soft water from the river to the crops by way of a mud-built aqueduct.

View in context

The trio found the soft water was perfect for brewing beer and have invested tens of thousands of pounds in the venture, The Old Moll Brewery in Netherton.

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For the production of soft water, more and more ion exchangers with sodium chloride regeneration have been used for more than 50 years.

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Speaking in an interactive session on use of Magnetic Water for Agriculture, he explained the function of the equipment that transformed hard water into soft water through the process of magnetization.

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DEAR Editor, This week I learned from Severn Trent that on February 6, Birmingham lost part of its much-valued soft water supply.

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An automated temperature control system features a closed circuit route, which allows for no loss of soft water and no scale in the system.

Advanced cold or hot feed rubber extruder

For example, the dyeing factories need a soft water with particular values of the parameters to avoid using a lot of colorants during the production process.

PANTA REI waste water and water treatment plants

Generally, pH, alkalinity, hardness, chloride, and carbon dioxide increased from very soft water to the hard water with only two exceptions (alkalinity in soft water and chloride in hard water; Table I).

Influence of water hardness on accumulation and effects of silver in the green alga, Raphidocelis subcapitata

It works in hard and soft water, cleans carbon deposits, lubricates brushes, is safe on proportioners and suits friction or touchless wash systems.

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