2
0
2019
ais
kum
1
journal
Original
Aiswarya, P.M.
Kumar, S. S.[S. Shyam]
Ganesan, R.[Rajesh]
Gnanasekaran, T.
Thermochim. Acta
2019
2020-09-29
Determination of standard molar enthalpies of formation of Bi2Mo3O12 (s), Bi2MoO6 (s), Bi6Mo2O15 (s) and Bi6MoO12 (s) by solution calorimetry
The standard molar enthalpies of formation of Bi2Mo3O12 (s), orthorhombic phase of Bi2MoO6 (s), monoclinic phase of Bi2MoO6 (s), Bi6Mo2O15 (s) and Bi6MoO12 (s) were determined by solution calorimetry and the values obtained are (-2915.8 +- 8.2), (-1407.2 +- 7.1), (-1385.7 +- 7.3), (-3346.5 +- 21.7) and (-2605.2 +- 20.3) kJ mol-1, respectively. The given uncertainties were calculated as 2o of the mean with 0.95 level of confidence.
Enthalpy of formation
Solution calorimetry
Bismuth molybdates
10.1016/j.tca.2019.178401
682
178401
1
InChI=1S/Mo
ZOKXTWBITQBERF-UHFFFAOYSA-N
molybdenum
Mo
2
InChI=1S/Bi
JCXGWMGPZLAOME-UHFFFAOYSA-N
bismuth
Bi
3
InChI=1S/O2/c1-2
MYMOFIZGZYHOMD-UHFFFAOYSA-N
oxygen
O2
4
InChI=1S/2Bi.3Mo.12O/q2*+3;3*+6;12*-2
VGHISRFNUHGWBO-UHFFFAOYSA-N
bismuth molybdate (Bi2Mo3O12)
Bi2Mo3O12
1
Synthesized by the authors
1
99.9
3
Spectroscopy
5
InChI=1S/2Bi.Mo.6O/q2*+3;+6;6*-2
VVHXWRLVYFOXMN-UHFFFAOYSA-N
bismuth molybdate (Bi2MoO6)
Bi2MoO6
1
Synthesized by the authors
1
99.9
3
Spectroscopy
6
InChI=1S/6Bi.2Mo.15O/q6*+3;2*+6;15*-2
RLYRUIYNEIBYDS-UHFFFAOYSA-N
bismuth molybdate (Bi6Mo2O15)
Bi6Mo2O15
1
Synthesized by the authors
1
99.9
3
Spectroscopy
7
InChI=1S/6Bi.Mo.12O/q6*+3;+6;12*-2
NZLVGYNWVXTXBP-UHFFFAOYSA-N
bismuth molybdate (Bi6MoO12)
Bi6MoO12
1
Synthesized by the authors
1
99.9
3
Spectroscopy
8
InChI=1S/ClH/h1H
VEXZGXHMUGYJMC-UHFFFAOYSA-N
hydrogen chloride
ClH
1
Commercial source
1
99
2
Estimated by the compiler
9
InChI=1S/H2O/h1H2
XLYOFNOQVPJJNP-UHFFFAOYSA-N
water
H2O
1
Commercial source
1
99.8
3
Estimated by the compiler
10
InChI=1S/C4H11NO3/c5-4(1-6,2-7)3-8/h6-8H,1-3,5H2
LENZDBCJOHFCAS-UHFFFAOYSA-N
2-amino-2-(hydroxymethyl)-1,3-propanediol
1,3-propanediol, 2-amino-2-(hydroxymethyl)-
tris(hydroxymethyl)methanamine
trishydroxymethylaminomethane
C4H11NO3
1
Commercial source
1
99.8
3
Stated by supplier
1
10
1
8
1
9
1
Principal objective of the work
AB
TRC
2/15/2020
1
Molar enthalpy of solution, kJ/mol
ISOPERIBOL
Liquid
Difference with the reference state, X-X(REF)
Pure solute at the same temperature and pressure
Crystal
8
9
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Mass fraction
10
Liquid
2
Pressure, kPa
Liquid
3
Temperature, K
Liquid
4
Solvent: Molality, mol/kg
8
Liquid
1
0.0023
2
2
100
1
3
298.15
5
4
0.1
2
1
-29.62
4
1
0.43
1
1
-3
Crystal
2
-2
Crystal
4
1
1
Crystal
3
-6
Ideal gas
Principal objective of the work
AB
TRC
2/15/2020
Formation of a compound from elements in their stable state
1
Molar enthalpy of reaction, kJ/mol
Solution calorimetry
298.15
5
100
1
1
Data file compiler
Propagation of evaluated standard uncertainties
95
1
-2915.8
5
1
22.7
2
1
-1
Crystal
2
-2
Crystal
5
1
1
Crystal 1
3
-3
Ideal gas
Principal objective of the work
AB
TRC
2/15/2020
Formation of a compound from elements in their stable state
1
Molar enthalpy of reaction, kJ/mol
Solution calorimetry
298.15
5
100
1
1
Data file compiler
Propagation of evaluated standard uncertainties
95
1
-1407.2
5
1
12.3
3
1
-1
Crystal
2
-2
Crystal
5
1
1
Crystal 2
3
-3
Ideal gas
Principal objective of the work
AB
TRC
2/15/2020
Formation of a compound from elements in their stable state
1
Molar enthalpy of reaction, kJ/mol
Solution calorimetry
298.15
5
100
1
1
Data file compiler
Propagation of evaluated standard uncertainties
95
1
-1385.7
5
1
12.3
4
1
-2
Crystal
2
-6
Crystal
6
1
1
Crystal
3
-7.5
Ideal gas
Principal objective of the work
AB
TRC
2/15/2020
Formation of a compound from elements in their stable state
1
Molar enthalpy of reaction, kJ/mol
Solution calorimetry
298.15
5
100
1
1
Data file compiler
Propagation of evaluated standard uncertainties
95
1
-3346.5
5
1
32.2
5
1
-1
Crystal
2
-6
Crystal
7
1
1
Crystal
3
-6
Ideal gas
Principal objective of the work
AB
TRC
2/15/2020
Formation of a compound from elements in their stable state
1
Molar enthalpy of reaction, kJ/mol
Solution calorimetry
298.15
5
100
1
1
Data file compiler
Propagation of evaluated standard uncertainties
95
1
-2605.2
5
1
27.5