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The enthalpy of occlusion of the (lithium chloride + potassium chloride) eutectic salt in zeolite 4A

✍ Scribed by Dusan Lexa

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 97 KB
Volume: 31
Category: Article
ISSN: 0021-9614
DOI: 10.1006/jcht.1999.0499

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✦ Synopsis

The molar enthalpy of occlusion of the (lithium chloride + potassium chloride) eutectic salt in zeolite 4A at the salt melting temperature occ H m (T fus ) was measured using differential scanning calorimetry. It was found that up to a mole fraction of the salt x = 0.931 in the (salt + zeolite) mixture, which is near the expected zeolite occlusion limit, occ H m (T fus ) was negative and directly proportional to x. Thus, within this composition range, the partial molar enthalpy of occlusion of the (lithium chloride + potassium chloride) eutectic salt in zeolite 4A at the salt melting temperature is constant and equal to -(24 ± 1) kJ • mol -1 .

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