Lithium nitride (Li/sub 3/N): standard enthalpy of formation by solution calorimetry
Journal Article
·
· J. Chem. Thermodyn.; (United States)
The enthalpies of reaction of a carefully prepared and characterized specimen of lithium nitride, Li/sub 3/N, with H/sub 2/O and with HCl(aq) were found to be -(581.62 +- 1.42) kJ mol/sup -1/ (-(139.01 +- 0.34) kcal/sub th/ mol/sup -1/) and -(803.50 +- 1.26) kJ mol/sup -1/ +-(192.04 +- 0.30) kcal/sub th/ mol/sup -1/), respectively. Enthalpies of solution of LiCl and NH/sub 4/Cl were also measured. Combination of the measured results with auxiliary thermochemical data from the literature yielded values of -(165.14 +- 1.55) kJ mol/sup -1/ (-(39.47 +- 0.37) kcal/sub th/ mol/sup -1/) and -(164.77 +- 1.51) kJ mol/sup -1/ (-(39.38 +- 0.36) kcal/sub th/ mol/sup -1/), respectively, for the standard enthalpy of formation, ..delta..H/sup 0//sub f/(Li/sub 3/N, c, 298.15/sup 0/K). A weighted mean value, -(164.93 +- 1.09) kJ mol/sup -1/ (-(39.42 +- 0.26) kcal/sub th/ mol/sup -1/), is recommended for ..delta..H/sup 0//sub f/(Li/sub 3/N, c, 298.15/sup 0/K). This result differs by about 8 kcal/sub th/ mol/sup -1/ from previous determinations. (auth)
- Research Organization:
- Argonne National Lab., IL
- OSTI ID:
- 7364431
- Journal Information:
- J. Chem. Thermodyn.; (United States), Journal Name: J. Chem. Thermodyn.; (United States) Vol. 7; ISSN JCTDA
- Country of Publication:
- United States
- Language:
- English
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· Inorg. Chem.; (United States)
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Related Subjects
36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALKALI METAL COMPOUNDS
AMMONIUM CHLORIDES
AMMONIUM COMPOUNDS
AMMONIUM HALIDES
CALORIMETRY
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
ENTHALPY
FORMATION HEAT
HALIDES
HALOGEN COMPOUNDS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LITHIUM CHLORIDES
LITHIUM COMPOUNDS
LITHIUM HALIDES
LITHIUM NITRIDES
NITRIDES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
REACTION HEAT
SOLUTION HEAT
THERMODYNAMIC PROPERTIES
WATER
360603* -- Materials-- Properties
ALKALI METAL COMPOUNDS
AMMONIUM CHLORIDES
AMMONIUM COMPOUNDS
AMMONIUM HALIDES
CALORIMETRY
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
ENTHALPY
FORMATION HEAT
HALIDES
HALOGEN COMPOUNDS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LITHIUM CHLORIDES
LITHIUM COMPOUNDS
LITHIUM HALIDES
LITHIUM NITRIDES
NITRIDES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
REACTION HEAT
SOLUTION HEAT
THERMODYNAMIC PROPERTIES
WATER