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Statements

Subject Item
dbr:Saltwater_soap
rdf:type
dbo:TelevisionShow
rdfs:label
Saltwater soap
rdfs:comment
Saltwater soap, also called sailors' soap, is a potassium-based soap for use with seawater. Inexpensive common commercial soap will not lather or dissolve in seawater due to high levels of sodium chloride in the water. Similarly, common soap does not work as well as potassium-based soap in hard water where calcium replaces the sodium, making residual insoluble "scum" due to the insolubility of the soap residue. To be an effective cleaning agent, soap must be able to dissolve in water.
dcterms:subject
dbc:Bathing dbc:Navies dbc:Soaps dbc:Water_conservation
dbo:wikiPageID
47258007
dbo:wikiPageRevisionID
1087953508
dbo:wikiPageWikiLink
dbr:Glycerol dbr:Bathing dbr:Chemical_reaction dbc:Navies dbr:Cleaning_agent dbr:Water_conservation dbc:Bathing dbr:Soap dbr:Dissolution_(chemistry) dbr:Feldspar dbr:Murphy_Oil_Soap dbr:Lye dbr:Evaporator_(marine) dbr:Lithium_soap dbr:Navy_shower dbr:Potassium dbr:Triglyceride dbr:Surfactant dbc:Water_conservation dbr:Sodium_chloride dbr:Alkalinity dbr:Sodium_hydroxide dbr:Fatty_acids dbr:Housekeeping dbr:Seawater dbc:Soaps dbr:Potassium_hydroxide dbr:Salting_out dbr:Water dbr:Saponification_value dbr:Washing dbr:Salt_(chemistry) dbr:Alkali_metal dbr:Elephant_toothpaste dbr:Saponification dbr:Potassium_carbonate dbr:Hydrolysis dbr:Fatty_acid
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dbo:abstract
Saltwater soap, also called sailors' soap, is a potassium-based soap for use with seawater. Inexpensive common commercial soap will not lather or dissolve in seawater due to high levels of sodium chloride in the water. Similarly, common soap does not work as well as potassium-based soap in hard water where calcium replaces the sodium, making residual insoluble "scum" due to the insolubility of the soap residue. To be an effective cleaning agent, soap must be able to dissolve in water. Ordinary soap is a salt of a fatty acid. Soaps are mainly used as surfactants for washing, bathing, and cleaning. Soaps for cleansing are made by treating vegetable or animal oils and fats with a strongly alkaline solution. Fats and oils are composed of triglycerides; three molecules of fatty acids are attached to a single molecule of glycerol. The alkaline solution, which is often called lye (although the term "lye soap" refers almost exclusively to soaps made with sodium hydroxide), brings about a chemical reaction known as saponification. In this reaction, the triglyceride fats are first hydrolyzed into free fatty acids, and then these combine with the alkali to form crude soap: a combination of various soap salts, excess fat or alkali, water, and liberated glycerol (glycerin). Saltwater soaps are potassium salts rather than sodium salts. Both sodium and potassium are alkali metals. The relatively high concentration of salt (sodium chloride) in seawater lowers the solubility of soaps made with sodium hydroxide, due to the salting out effect. Potassium soaps are more soluble in seawater than sodium soaps and so are more effective with seawater. In places that do not have freshwater or need to conserve it, cleaning can be done with the use of salt water and saltwater soap.
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dbr:Soap
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wikipedia-en:Saltwater_soap?oldid=1087953508&ns=0
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3539
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wikipedia-en:Saltwater_soap