Letter | Published:

Adsorption Isothermals

Naturevolume 120page82 (1927) | Download Citation

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Abstract

IN his book “Colloid and Capillary Chemistry” (page 111 of translation by H. Stafford Hatfield, London, 1926) Freundlich remarks in reference to the adsorption of gases: “a theoretically well-founded equation, giving the a, p curves over a considerable range, is not known. The empirical general parabolic equation a = ap1/n in which a and 1/n are constants, is still nearly always used”. The quantities and 1/n are functions of the temperature and are constant when this is constant.

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  1. The British Boot, Shoe and Allied Trades Research Association, 19 Bedford Square, W.C.1.

    • H. BRADLEY

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https://doi.org/10.1038/120082a0

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