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Thermodynamic Data for Silver Chloride and Silver Bromide.

Authors
Pankratz-LB
Source
NTIS: PB 196 677 :12 pages
Link
NIOSHTIC No.
10009133
Abstract
Enthalpies above 298 deg. K were determined for agcl to 1,400 deg. K and for agbr to 1,200 deg. K by copper-block calorimetry. Before melting, both compounds showed an anomalous increase in enthalpy, an effect associated with lattice defect formation. Melting points and heats of fusion were determined to be agcl, 730 deg. K and 2,945 cal/mole; agbr, 700 deg. K and 2,030 cal/mole. The heat capacity of both melted substances decreased with increasing temperature over the entire liquid ranges investigated. Enthalpies above 298 deg. K were tabulated at even temperatures along with derived entropy increments and heat capacity values. The results were combined with the known heats of formation and entropies at 298.15 Deg. K to obtain values of the heats and free energies of formation over the range 298.15 Deg. to 1,400 deg. K for agcl and 298.15 Deg. to 1,200 deg. K for agbr.
Publication Date
19700101
Document Type
IH; Report of Investigation;
Fiscal Year
1970
NTIS Accession No.
PB-196677
NTIS Price
A03
Identifying No.
RI 7430
NIOSH Division
ALRC;
Source Name
NTIS: PB 196 677
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