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A Novel Bromine Calorimetric Determination of the Formation Enthalpies of Sulfides.

Authors
Stuve-JM
Source
MISSING :5 pages
Link
NIOSHTIC No.
10006356
Abstract
A novel calorimetric solution technique, recently developed at the Bureau of Mines, was tested using synthetic samples of chalcocite (cu2s) and covellite (cus). The solution of these refractory sulfides was accomplished by oxidation with bromine in a moderately acidic, aqueous solution. The resulting values for the standard enthalpies of formation (^hf deg, 298.15) For cu2s(c) and cus(c) were -18.1 +/- 1.1 Kcal/mol and -13.3 +/- 1.1 Kcal/mol, respectively. These values are in good agreement with published formation values derived from other methods of physicochemical measurement.
Publication Date
19820101
Document Type
IH; Report of Investigations
Fiscal Year
1982
NTIS Accession No.
NTIS Price
Identifying No.
RI 8710
NIOSH Division
ALRC;
Source Name
MISSING
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