# Why is water not used as a dielectric in the condenser?

The dielectric constant of water is very high. Then why is it not used as a dielectric in the condenser?

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The few times I tried to use water as a dielectric it turned out to be conducting ;-) –  Fabian Oct 18 '12 at 12:58
Note: But, domestic water usually contains several kinds of salts like $NaCl$, etc. which dissipate into ions in a solution (by Arrhenius theory) as $Na^+,Cl^-$ etc. I think you know that the presence of charged particles (like ions) in a solution allows it to conduct electricity. BUT, water doesn't actually play a role of conducting here. It's just the medium...