Abstract
IT has been pointed out by several workers, Dobry1 and Wo. Ostwald et al.2, that Van't Hoff's relationship between the osmotic pressure p and the concentration C of a dissolved substance p = RTC is a limiting law. Some substances such as the sugars obey this law up to relatively high concentrations3, but high molecular substances, especially those the molecular shapes of which deviate greatly from the spherical, show considerable departures from the linear relationship between osmotic pressure and concentration.
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References
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POLSON, A. Osmotic Pressure of Rod-shaped Particles in Solution. Nature 157, 406–407 (1946). https://doi.org/10.1038/157406b0
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DOI: https://doi.org/10.1038/157406b0
