High-power electricity through Salt Water

[Erez_L]

Hello all,

How strong a current can I move though water?
Googling I have found only conductivity of salt water, but what is water's impedance?

Can I create 1 ms pulse of 500 volts and 1 A using salt water?

I want to use salt water as electrodes:
two metal electrodes submerged in two different salt water "bags", connected by some type of bio-metrial.

Any1 has information that might suggest it will work or fail?


Thanks alot
Erez

 

[Borek]

Ultrapure water specific resistance is 18 MΩcm, so you can assume it is a perfect insulator. Conductance is due to solved ions only and depends on their concentration.

 

[Erez_L]

Hi,

That's way I am talking of salt water. which has about 5 s/m.
But what about inductance and capticence?

and how does the impedance change at high freuqency?

Also, the issue is how FAST does ionic current can work?

 

[Borek]

Honestly, these things are addressed in any serious electrochemistry textbook. Check for example Electrochemistry by Jiri Koryta, Jiri Dvórák and Vlasta Bohácková.