温度/℃
|
10
|
20
|
30
|
40
|
50
|
70
|
(NH4)2SO4
|
73.0
|
75.4
|
78.0
|
81.0
|
84.5
|
91.9
|
FeSO4·7H2O
|
40.0
|
48.0
|
60.0
|
73.3
|
-
|
-
|
(NH4)2Fe(SO4)2·6H2O
|
18.1
|
21.2
|
24.5
|
27.9
|
31.3
|
38.5
|