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Abstract
The low-temperature heat capacity of hercynite (FeAl2O4) was measured between 3 and 400 K, and thermochemical functions were derived from the results. The measured heat-capacity curve shows a small lambda-shaped anomaly peaking at around 13 K. From our data, we suggest a standard entropy for hercynite at 298.15 K of 113.9 ± 0.2 J/(mol·K), which is some 7.6 J/(mol·K) higher than reported previously by a calorimetric study that missed the entropy contributions of the low-temperature anomaly.
Received: 2001-12-12
Accepted: 2002-8-22
Published Online: 2015-3-31
Published in Print: 2003-1-1
© 2015 by Walter de Gruyter Berlin/Boston
