# Condosity

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> Source: https://en.wikipedia.org/wiki/Condosity
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{{Short description|Measurement of electrical conductivity of a solution}}
'''Condosity''' is a comparative measurement of [electrical conductivity](/source/electrical_conductivity) of a solution.

The condosity of any given [solution](/source/Solution_(chemistry)) is defined as the [molar concentration](/source/molar_concentration) of a [sodium chloride](/source/sodium_chloride) (NaCl) solution that has the same specific electrical conductance as the solution under test.<ref>{{Cite book|url=https://books.google.com/books?id=mNNKAQAAIAAJ|title=CRC Handbook of Chemistry and Physics: A Ready-reference Book of Chemical and Physical Data|last=Weast|first=Robert C.|date=1982|publisher=CRC Press|isbn=9780849304637|pages=2082|language=en}}</ref><ref>{{Cite book|url=https://books.google.com/books?id=j_5qAAAAMAAJ|title=Aqueous solutions and body fluids: their concentrative properties and conversion tables|last=Wolf|first=Arnold Veryl|date=1966|publisher=Hoeber Medical Division, Harper & Row|pages=17–28|language=en}}</ref><ref name=AJPR>{{Cite journal|last1=A Slomowitz|first1=Larry|last2=Deng|first2=Aihua|last3=S Hammes|first3=John|last4=Gabbai|first4=Francis|last5=C Thomson|first5=Scott|s2cid=13630228|date=2002-05-01|title=Glomerulotubular balance, dietary protein, and the renal response to glycine in diabetic rats|journal=American Journal of Physiology. Regulatory, Integrative and Comparative Physiology|volume=282|issue=4|pages=R1096–103|doi=10.1152/ajpregu.00610.2001|pmid=11893614}}</ref>

By way of example, for a 2 Molar [potassium chloride](/source/potassium_chloride) (KCl) solution, the condosity would be expected to be somewhat greater than 2.0. This is because [potassium](/source/potassium) is a better conductor than [sodium](/source/sodium).

== Applications ==
The measurement is sometimes used in biological systems to provide an assessment of the properties of bodily or cellular liquids,<ref>{{Cite book|url=https://books.google.com/books?id=v55COlrupRQC&pg=PA289|title=Marsupial Nutrition|last=Hume|first=Ian D.|date=1999-05-27|publisher=Cambridge University Press|isbn=9780521595551|pages=289|language=en}}</ref><ref name=AJPR/><ref>{{Cite book|url=https://books.google.com/books?id=Arm2AAAAIAAJ|title=Proceedings of the Society for Experimental Biology and Medicine|last=N.Y.)|first=Society for Experimental Biology and Medicine (New York|date=1967|pages=938|language=en}}</ref> or the properties of solutes in the physical environment.<ref>{{Cite journal|last1=Marañon|first1=T.|last2=García|first2=L. V.|last3=Troncoso|first3=A.|date=1989-10-01|title=Salinity and germination of annual Melilotus from the Guadalquivir delta (SW Spain)|journal=Plant and Soil|language=en|volume=119|issue=2|pages=223–228|doi=10.1007/BF02370412|issn=0032-079X|hdl=10261/11766|s2cid=39027165|hdl-access=free}}</ref> When measuring the properties of bodily fluids such as [urine](/source/urine), condosity is expressed in units of millimoles per litre (mM/L).<ref>{{cite journal|last1=Wolf|first1=A.V.|last2=Pillay|first2=V.K.G|title=Renal Concentration Tests: Osmotic Pressure, Specific Gravity, Refraction and Electrical Conductivity Compared|journal=The American Journal of Medicine|date=June 1969|volume=46|issue=6|pages=838–839|doi=10.1016/0002-9343(69)90085-0|pmid=5797912|url=http://www.amjmed.com/article/0002-9343(69)90085-0/pdf|access-date=1 January 2018|url-access=subscription}}</ref><ref>{{Cite book|chapter-url=https://books.google.com/books?id=j_5qAAAAMAAJ|title=Aqueous solutions and body fluids: their concentrative properties and conversion tables|last=Wolf|first=Arnold Veryl|date=1966|publisher=Hoeber Medical Division, Harper & Row|location=New York|pages=19–26|language=en|chapter=Electrical Conductivity: Specific Conductance, Condosity and Relative Salinity}}</ref>

==References==
{{reflist}}

Category:Solutions

{{chemistry-stub}}

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Adapted from the Wikipedia article [Condosity](https://en.wikipedia.org/wiki/Condosity) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Condosity?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.