X-RAY DIFFRACTION STUDY OF ISOMORPHOUS CRYSTAL NONAHYDRATES
625
duralumin cell of 1 ml capacity supplied by an alumi-
num foil window for radiation input and output was
filled with sample under study. Particle size was
estimated by Debye–Scherer formula [21]: L =
λ/(B*d*cos θ), where L is an average size of a scatte-
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.54 Å, d is the interplanar distance (Å), and θ is a
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RUSSIAN JOURNAL OF GENERAL CHEMISTRY Vol. 82 No. 4 2012