请在这里输入要翻译的内容（2） 在盐水中加入碳酸钠溶液，使其和盐水中的

请在这里输入要翻译的内容（2） 在盐水中加入碳酸钠溶液，使其和盐水中的Ca2+反应，生成不溶性的碳酸钙沉淀，其反应式如下： g. N, L7 W' W5 ]! A
+ V, D {) j7 X: NCa2++CO32-→CaCO3 ↓3 z5 c# |& Y5 w F, j9 ~
为了将Ca2+除净，碳酸钠的加入量必须超过反应式的理论需要量，本工艺碳酸钠的过碱量200~400mg/l。

結果 (英文) 1:

Please input the content (2) to be translated in saline was added sodium carbonate solution, it and saline ca2 reaction, the formation of insoluble calcium carbonate precipitation, the reaction is as follows: g. N W L7 'W5]! a
v, d {) j7 x: nca2 co32-→ caco3 ↓ 3 z5 c # | & y5 wf, j9 ~
ca2 addition to the net amount of sodium carbonate added must be more than reactive theory requirements, the process the amount of sodium carbonate is too alkaline, 200 ~ 400mg / l.

結果 (英文) 2:

Please input the content to be translated (2) in the salt water adding sodium carbonate solution, make its and saline in the Ca2 reaction, formation of insoluble calcium carbonate precipitation, the reaction type is as follows: G. N, L7 W'A
V, D W5! J7 X: NCa2) {CO32- → CaCO3. 3 * Y5 w Z5 C | F, J9 to Ca2 ~
inter net, the amounts of sodium carbonate must exceed the reactive theory demand, the process of sodium carbonate of alkali 200~400mg/l.

結果 (英文) 3:

Please enter here the content to be translated (2) in the brine by adding sodium carbonate solution to enable it and Ca2 reactions in brine, generates insoluble calcium carbonate precipitate, their reaction is as follows: g. n, L7 W'W5]! A
V, D{) J7 X:NCa2 CO32-→ CaCO3 ↓ # | & Y5 w 3 x c f, J9~
NET Ca2, sodium carbonate added amount must be over reactive theory requirements, this process of sodium carbonate alkali 200~400mg/l.