Table 2 Thermodynamic characterization parameters(1).

From: Evaluation study on gas-phase passivation inhibiting the spontaneous combustion tendency of ferrous sulfide compounds

 

Evaluation parameters

∆G1

∆G2

∆G3

∆T1

∆T2

∆T3

TS

TI

Unit

%

%

%

Passivation degree

Indicator

-

-

+

-

-

+

+

+

3%—2 h

B2

3.22

14.76

14.77

30.14

98.21

66.94

198.30

159.97

3%—4 h

B4

3.17

13.26

13.26

35.97

97.20

69.46

202.38

159.20

3%—6 h

B6

2.70

23.69

23.68

34.49

98.24

62.57

195.93

148.62

3%—8 h

B8

5.55

11.57

11.57

32.78

97.73

56.40

200.57

142.48

6%—2 h

C2

2.91

14.25

14.25

30.16

95.13

71.65

200.37

157.14

6%—4 h

C4

1.42

15.47

15.47

32.80

96.38

71.42

200.38

155.44

6%—6 h

C6

1.41

15.54

15.54

31.43

95.14

70.87

199.51

155.82

6%—8 h

C8

0.98

12.89

12.89

28.99

92.90

65.91

198.53

155.65

9%—2 h

D2

2.55

26.43

26.43

26.06

91.74

86.70

200.32

148.02

9%—4 h

D4

1.16

21.69

21.69

30.34

85.32

87.21

204.70

158.30

9%—6 h

D6

0.72

21.86

21.86

43.70

77.47

90.70

207.90

154.40

9%—8 h

D8

0.92

19.53

19.53

48.90

44.42

92.80

203.33

149.27