Chemistry:Condosity

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Short description: Measurement of electrical conductivity of a solution

Condosity is a comparative measurement of electrical conductivity of a solution.

The condosity of any given solution is defined as the molar concentration of a sodium chloride (NaCl) solution that has the same specific electrical conductance as the solution under test.[1][2][3]

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

Applications

The measurement is sometimes used in biological systems to provide an assessment of the properties of bodily or cellular liquids,[4][3][5] or the properties of solutes in the physical environment.[6] When measuring the properties of bodily fluids such as urine, condosity is expressed in units of millimoles per litre (mM/L).[7][8]

References

  1. Weast, Robert C. (1982) (in en). CRC Handbook of Chemistry and Physics: A Ready-reference Book of Chemical and Physical Data. CRC Press. pp. 2082. ISBN 9780849304637. https://books.google.com/books?id=mNNKAQAAIAAJ. 
  2. Wolf, Arnold Veryl (1966) (in en). Aqueous solutions and body fluids: their concentrative properties and conversion tables. Hoeber Medical Division, Harper & Row. pp. 17–28. https://books.google.com/books?id=j_5qAAAAMAAJ. 
  3. 3.0 3.1 A Slomowitz, Larry; Deng, Aihua; S Hammes, John; Gabbai, Francis; C Thomson, Scott (2002-05-01). "Glomerulotubular balance, dietary protein, and the renal response to glycine in diabetic rats". American Journal of Physiology. Regulatory, Integrative and Comparative Physiology 282 (4): R1096–103. doi:10.1152/ajpregu.00610.2001. PMID 11893614. 
  4. Hume, Ian D. (1999-05-27) (in en). Marsupial Nutrition. Cambridge University Press. pp. 289. ISBN 9780521595551. https://books.google.com/books?id=v55COlrupRQC&pg=PA289. 
  5. N.Y.), Society for Experimental Biology and Medicine (New York (1967) (in en). Proceedings of the Society for Experimental Biology and Medicine. pp. 938. https://books.google.com/books?id=Arm2AAAAIAAJ. 
  6. Marañon, T.; García, L. V.; Troncoso, A. (1989-10-01). "Salinity and germination of annual Melilotus from the Guadalquivir delta (SW Spain)" (in en). Plant and Soil 119 (2): 223–228. doi:10.1007/BF02370412. ISSN 0032-079X. 
  7. Wolf, A.V.; Pillay, V.K.G (June 1969). "Renal Concentration Tests: Osmotic Pressure, Specific Gravity, Refraction and Electrical Conductivity Compared". The American Journal of Medicine 46 (6): 838–839. doi:10.1016/0002-9343(69)90085-0. PMID 5797912. http://www.amjmed.com/article/0002-9343(69)90085-0/pdf. Retrieved 1 January 2018. 
  8. Wolf, Arnold Veryl (1966). "Electrical Conductivity: Specific Conductance, Condosity and Relative Salinity" (in en). Aqueous solutions and body fluids: their concentrative properties and conversion tables. New York: Hoeber Medical Division, Harper & Row. pp. 19–26. https://books.google.com/books?id=j_5qAAAAMAAJ.