Thermal effects on molecular sieve, type 13X have been studied by employing thermogravimetry (TO) and X-ray diffraction (XRD) techniques. The weight loss free and entrapped water equals 17.5% was observed, which corresponds to 132 water molecules. The dehydration ofl11Qlecular sieve is obviated by changes observed in the relative intensities of the diffraction peaks of samples heated at various temperatures.
M AHMAD ,R QADEER ,R HUSSAIN ,
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