污染食盐制备纯碱的综合与创新实验设计
刘雪茹, 张荣兰, 崔斌
Improvement on Preparation of Na
2
CO
3
and Innovative Design on Purification of Salt
Xueru Liu, Ronglan Zhang, Bin Cui
表1
NaCl、NaHCO
3
、NH
4
HCO
3
和NH
4
Cl在不同温度下的溶解度(g/100 g H
2
O)
盐
溶解度(g/100 g H
2
O)
0 ℃
10 ℃
20 ℃
30 ℃
40 ℃
50 ℃
60 ℃
70 ℃
NaCl
35.7
35.8
36.0
36.3
36.6
37.0
37.3
37.8
NaHCO
3
6.9
8.2
9.6
11.1
12.7
14.5
16.4
–
NH
4
HCO
3
11.9
15.8
21.0
27.0
–
–
–
–
NH
4
Cl
29.4
33.3
37.2
41.4
45.8
50.4
55.2
60.2