-15 -10 -5 0 -15 -10 -5 0 log [O 2 ] NaS 2 Na 2 SO 4 Na 2 S Na Na 2 O l o g [ S O 2 ] 2 Na + ½ O2 ↔ Na2O 2 Na20 + SO2 + ½ O2 ↔ Na2SO4 2 NaS + 2 O2 ↔ Na2SO4 2 Na + SO2 ↔ Na2S +O2 Na2S + 3 SO2 ↔ 2 NaS2 + 3 O2 Na2S + 3/2 O2 ↔ Na2O + SO2
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-15 -10 -5 0
-15
-10
-5
0
log [O2]
NaS2
Na2SO4Na2S
Na Na2O
l o g
[ S O
2 ]
2 Na + ½ O2↔ Na2O
2 Na20 + SO2 + ½ O2
↔ Na2SO4
2 NaS + 2 O2
↔ Na2SO4
2 Na + SO2↔
Na2S +O2
Na2S + 3 SO2↔ 2 NaS2 + 3 O2
Na2S + 3/2 O2
↔ Na2O + SO2
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-15 -10 -5 0
glass meltpure phases
Na2SO4
Na2S
NaS2
Na2O
log [O2]
-15 -10 -5 0-15
-10
-5
0
NaS2
Na2SO
4Na
2S
Na Na2O l o
g
[ S O
2 ]
log [O2]
1400 °C
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Na-O-S
„Daumenkino“
„thumbs movie“
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pure phases vs. glass melts
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l o
g [ S O
2 ]
log [O2]
T = 900 °C
Na2O
Na2O2
Na2S2O7
Na2SO4
Na2S
NaS2
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0
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l o
g [ S O
2 ]
log [O2]
T = 900 °C
Na2O
Na2SO4
Na2S
NaS2
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l o
g [ S O
2 ]
log [O2]
T = 1500 °C
Na2O
NaS2
Na
Na2SO4
Na2S
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0
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l o
g [ S O
2 ]
log [O2]
T = 1500 °C
Na2ONa2S
NaS2
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pure phases, temperature dependence
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l o
g [ S O
2 ]
log [O2]
T = 800 °C
O2-
O22-
S2O72-
SO42-
S2-
S2-
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0
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-20-20 -18 -16 -14 -12 -10 -8 -6 -4 -2 0
l o
g [ S O
2 ]
log [O2]
T = 800 °C
Na2O
Na2O2
Na2S2O7
Na2SO4
Na2S
NaS2
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-2
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l o
g [ S O
2 ]
log [O2]
T = 900 °C
Na2O
Na2O2
Na2S2O7
Na2SO4
Na2S
NaS2
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0
-2
-4-6
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-20-20 -18 -16 -14 -12 -10 -8 -6 -4 -2 0
l o
g [ S O
2 ]
log [O2]
T = 1000 °C
Na2O
Na2O2
Na2SO4
Na2S
NaS2
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0
-2
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l o
g [ S O
2 ]
log [O2]
T = 1100 °C
Na2O
Na2SO4
Na2S
NaS2
Na
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l o
g [ S O
2 ]
log [O2]
T = 1200 °C
Na2O
Na2SO4
Na2S
NaS2
Na
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l o
g [ S O
2 ]
log [O2]
T = 1300 °C
Na2O
Na2SO4
NaS2
Na
Na2S
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l o
g [ S O
2 ]
log [O2]
T = 1400 °C
Na2O
Na2SO4
Na2S
NaS2
Na
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0
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l o
g [ S O
2 ]
log [O2]
T = 1500 °C
Na2O
NaS2
Na
Na2SO4
Na2S
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glass melt, temperature dependence
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l o
g [ S O
2 ]
log [O2]
T = 800 °C
Na2O
Na2SO4
Na2S
NaS2
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0
-2
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l o
g [ S O
2 ]
log [O2]
T = 900 °C
Na2O
Na2SO4
Na2S
NaS2
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l o
g [ S O
2 ]
log [O2]
T = 1000 °C
Na2SO4
Na2ONa2S
NaS2
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0
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l o
g [ S O
2 ]
log [O2]
T = 1100 °C
Na2SO4
Na2O
Na2S
NaS2
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0
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l o
g [ S O
2 ]
log [O2]
T = 1200 °C
Na2SO4
Na2O
Na2
S
NaS2
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0
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-20
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l o g [ S O
2 ]
log [O2]
T = 1300 °C
Na2SO4
Na2O
Na2
S
NaS2
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0
-2
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-20
-20 -18 -16 -14 -12 -10 -8 -6 -4 -2 0
l o g [ S O
2 ]
log [O2]
T = 1400 °C
Na2ONa2S
NaS2
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0
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l o g [ S O
2 ]
log [O2]
T = 1500 °C
Na2ONa2S
NaS2
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log [O2]
log [SO2]
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log [O2]
log [SO2]
l [SO ] T 600 °C l SO d O ti
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-20 -10 0 log [O2]
0
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log [SO2]
NiS NiSO4
Ni
T = 600 °C; only SO2 and O2 as reactive gases
Ni3S2 NiO
log [S ] T = 600 °C; SO and O ; log [H O] = 5
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0
-2
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log [Stot]
-20 -10 0 log [O2]
NiS NiSO4
Ni
T = 600 °C; SO2 and O2; log [H2O] = -5
Ni3S2 NiO
log [S ] T = 600 °C; SO and O ; log [H O] = 0
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0
-2
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-20 -10 0 log [O2]
NiS NiSO4
Ni3S2 NiO
Ni
log [Stot] T = 600 C; SO2 and O2; log [H2O] = 0
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