Phase transitions in calcium nitrate thin films |
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| Authors: | Al-Abadleh Hind A Krueger B J Ross J L Grassian V H |
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| Affiliation: | Department of Chemistry University of Iowa, Iowa City, IA 52242, USA. |
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| Abstract: | Calcium carbonate is a ubiquitous mineral and its reactivity with indoor and outdoor air pollutants will contribute to the deterioration of these materials through the formation of salts that deliquesce at low relative humidity (RH). As shown here for calcium nitrate thin films, deliquescence occurs at even lower relative humidity than expected from bulk thermodynamics and lower than the recommended humidity for the preservation of artifacts and antiques. |
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