NDLI: The Osmotic Pressure of Concentrated Solutions of Gelatin in Equilibrium with Solutions of Magnesium Chloride

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The Osmotic Pressure of Concentrated Solutions of Gelatin in Equilibrium with Solutions of Magnesium Chloride

Content Provider	Semantic Scholar
Author	Adair, G. S. Callow, E. H.
Abstract	The osmotic pressures and the membrane equilibrium of chloride ions have been determined for solutions of gelatin in equilibrium with solutions of magnesium chloride containing from 4.0 to 9.0 equivalents per litre. The pressures increase more rapidly than the concentration, an effect represented by a high value of the term "b" in van der Waals' equation p (V - b) = RT. Calculations made by a thermodynamical formula which makes allowances for deviations from the ideal solution laws show that the high value of "b" is not due to an unequal distribution of diffusible ions. The theory that the high values of the hydration estimated from viscosity formulae account for the magnitude of "b" has been examined and the conclusion has been reached that the term "b" for gelatin as well as for haemoglobin is considerably larger than the volume of the protein hydrate.
Starting Page	819
Ending Page	830
Page Count	12
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://pdfs.semanticscholar.org/4edb/0a6bfd1c2204385b40bd14e55160edb7f241.pdf
PubMed reference number	19872566v1
Volume Number	13
Journal	The Journal of general physiology
Language	English
Access Restriction	Open
Subject Keyword	Chloride Ion Concentrate Dosage Form Equilibrium Equivalent Weight Gelatin Hemoglobin Ions Large Magnesium Chloride Osmotic Pressure Solutions Tissue membrane
Content Type	Text
Resource Type	Article

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