eletrolysis of concentrated salt water

2008-01-14 9:27 pm

I would like to know the name that we call concentrated salt water. Is the word started with the letter B? What concentration does it require the do the eletrolysis? And how much voltage does it need?

回答 (1)

用戶221652

2008-01-15 1:35 am

✔ 最佳答案

Brine, is water saturated or nearly saturated with salt (NaCl). At 60 °F (15.5 °C) saturated brine is 26.4% salt by weight (100 degree SAL). At 0 °C (32 °F) brine can only hold 23.3% salt. [1]

Different electrolytic cells will use different voltage:

Comparison of cell technologies
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||Mercury|||Diaphragm|||Membrane
Operating current density ( kA/m2)|||8 - 13|||||||0.9 - 2.6||||||||3 - 5
Cell voltage (V)|||||||||||||||||||||||||||||||||||||||||||3.9 - 4.2|||2.9 - 3.5||||||||3.0 - 3.6

參考: (1) http://en.wikipedia.org/wiki/Brine (2) http://electrochem.cwru.edu/ed/encycl/art-b01-brine.htm

👍 0 👎 0