[HD] Electrolysis of saltwater (NaCl) with copper electrodes

Saltwater mainly contains Na+ and Cl- ions because water itself is only poorly ionized (reduced quantity of H+ and OH-)
Under the influence of an electric current, the ions move to the opposite sign electrode, Na+ to the cathode (negative electrode) and they are called cations and Cl- to the anode (so they are anions)
The moving ions close the electrical circuit and a current can be measured with an ampermeter connected in series with the power source.
The processes taking place at the anode are:
2Cl- --) Cl2 + 2e-
(gas chlorine is released, careful not to inhale it as it's poisonous)

The anode is corroded:
Cu --) 2e- + Cu2+

Category:

Science & Technology

Tags:

• electrolysis
• nacl
• chlorine

[toothpick93]

does the NaOH form on the cathode?

[radumotisan]

@toothpick93 yes, as a result of sodium reacting with water. this can be easily illustrated by using a small quantity of phenolphthalein indicator.

[dreamyear]

salt is toixc with hho

[radumotisan]

@dreamyear not quite sure what you mean here.

[dreamyear]

salt electrolysis = Chlorine gas

[radumotisan]

@dreamyear right, there is a warning in video description already, however the quantity released is small.

thanks for watching!

[rVRoxanne681]

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[123chorry]

how many amps does that go threw

[DoktorKlawonn]

@adolffims1

The orange substance is Cu2O.

[halo4life455]

@adolffims1 same thing happened to me when i let it settle the blue stuff turned clear and the orange stuff settled on the bottom!

[thenoobcannon]

er. im doing this right now but all i am getting is hydrogen and copper chloride

[NOBOX7]

@dreamyear not here , thats hydrogen gas , the metal is reacting with the chlorine thats why you dont see any gas on that side of the device

[adolffims1]

i did this, but after some time the solution turned blue, and some orange/yellow particules stated forming and flucolating, what are they?

if cl2 is produced, is HCL produced? cl2+h20

if so the hcl can be attacking the copper and forming the orange substance?

if so waht is the orange substance?

thx ^^