Abstract
The standard Gibbs energies of formation of barium phosphide and barium orthophosphate were determined by a chemical equilibration technique yielding the following results: 3Ba(1)+P2(g)=Ba3P2 (s) ΔG°=-732,000+156.1T(±12,800) (J/mol) 3BaO (s)+P2(g)+5/2O2(g)=Ba3(PO4)2(s) ΔG°=-2,523,000+580.0 T(±16,600) (J/mol) The stability and the thermodynamic behavior of barium compounds as reaction products of dephosphorization of steel were discussed in terms of the oxygen partial pressure and the activity coefficient of Ba1.5P in molten Ba saturated with CaO.
| Original language | English |
|---|---|
| Pages (from-to) | 871-877 |
| Number of pages | 7 |
| Journal | Metallurgical Transactions B |
| Volume | 20 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1989 Dec 1 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanics of Materials
- Metals and Alloys
- Materials Chemistry
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Determination of the standard gibbs energies of formation of Ba3P2 and Ba3(PO4)2. / Min, Dong Joon; Sano, N.
In: Metallurgical Transactions B, Vol. 20, No. 6, 01.12.1989, p. 871-877.Research output: Contribution to journal › Article
TY - JOUR
T1 - Determination of the standard gibbs energies of formation of Ba3P2 and Ba3(PO4)2
AU - Min, Dong Joon
AU - Sano, N.
PY - 1989/12/1
Y1 - 1989/12/1
N2 - The standard Gibbs energies of formation of barium phosphide and barium orthophosphate were determined by a chemical equilibration technique yielding the following results: 3Ba(1)+P2(g)=Ba3P2 (s) ΔG°=-732,000+156.1T(±12,800) (J/mol) 3BaO (s)+P2(g)+5/2O2(g)=Ba3(PO4)2(s) ΔG°=-2,523,000+580.0 T(±16,600) (J/mol) The stability and the thermodynamic behavior of barium compounds as reaction products of dephosphorization of steel were discussed in terms of the oxygen partial pressure and the activity coefficient of Ba1.5P in molten Ba saturated with CaO.
AB - The standard Gibbs energies of formation of barium phosphide and barium orthophosphate were determined by a chemical equilibration technique yielding the following results: 3Ba(1)+P2(g)=Ba3P2 (s) ΔG°=-732,000+156.1T(±12,800) (J/mol) 3BaO (s)+P2(g)+5/2O2(g)=Ba3(PO4)2(s) ΔG°=-2,523,000+580.0 T(±16,600) (J/mol) The stability and the thermodynamic behavior of barium compounds as reaction products of dephosphorization of steel were discussed in terms of the oxygen partial pressure and the activity coefficient of Ba1.5P in molten Ba saturated with CaO.
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U2 - 10.1007/BF02670192
DO - 10.1007/BF02670192
M3 - Article
VL - 20
SP - 871
EP - 877
JO - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
JF - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
SN - 0360-2141
IS - 6
ER -