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Thermochemistry of hydrated calcium borates

✍ Scribed by Jun Li; Shiyang Gao; Shuping Xia; Bing Li; Rongzu Hu

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 145 KB
Volume: 29
Category: Article
ISSN: 0021-9614
DOI: 10.1006/jcht.1997.0224

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✦ Synopsis

The enthalpies of solution of five hydrated calcium borates in approximately 1 mol•dm -3 aqueous hydrochloric acid were determined. From a combination of these results with measured enthalpies of solution of H3BO3 in HCl(aq) and of CaO in (hydrochloric acid + boric acid) (aq), together with the standard molar enthalpies of formation of CaO(s), H3BO3(s), and H2O(1), the standard molar enthalpies of formation of the five hydrated calcium borates were obtained.

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