Abstract
A CONVENIENT optical method for studying the diffusion of water molecules in vermiculite is outlined below. The effect has similarities to that employed by Tiselius1 in his studies of diffusion in the zeolites; but, in this instance, it can be observed in reflected or transmitted light and is not a birefringence effect. Although magnesium vermiculite is referred to particularly, vermiculites saturated with cations other than magnesium behave in a similar (although not identical) manner.
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References
Tiselius, A., J. Phys. Chem., 40, 223 (1936).
Walker, G. F., Proc. Fourth Nat. Clay Min. Conf., Penn. State Univ. (1955).
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WALKER, G. Diffusion of Interlayer Water in Vermiculite. Nature 177, 239–240 (1956). https://doi.org/10.1038/177239b0
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DOI: https://doi.org/10.1038/177239b0
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