Nigel Baldwin | Electrolysis of a dilute sodium chloride solution C0034 @nigelbaldwin3184 | Uploaded March 2021 | Updated October 2024, 6 hours ago.
Greenhouse chemistry
Chemistry experiments at home in the greenhouse
The electrolysis of dilute sodium chloride solution
Safety
Wear safety spectacles
Do not get any of the solutions in your eyes
Wear gloves.
Wash any spillages that come in contact with the skin off immediately with cold water.
Be careful of getting the electrolysis solution on your on your skin and especially not in your eyes, as it effectively becomes a dilute bleach solution during the electrolysis process.
There is a jump after about 2 and a half minutes into the video clip when a section of the movie file was cut out. During the cut section the electrolysis of the solution was proceeding.
Dilute sodium chloride solution was electrolysed using carbon fibre electrodes and a 6v battery.
One of the carbon fibre electrodes was inserted into a plastic dropping pipette in order to collect the gas formed around the electrode during electrolysis.
Numerous small holes had been made in the walls of the plastic pipette using a steel pin.
The carbon fibre electrode inserted into the pipette was connected to the negative terminal of the battery and became the cathode.
The second carbon fibre electrode was connected to the positive terminal of the battery and became the anode.
Gas bubbles were produced around both electrodes and there was a strong smell of chlorine.
The gas produced around the cathode formed in small bubbles which slowly merged together forming a large bubble which moved along the slightly sloping pipette and collected in the bulb of the pipette for testing.
All of the equipment used can be washed and re-used for further electrolysis experiments.
Both carbon fibre electrodes could be placed in pipettes, allowing any gaseous products to be collected using the method shown.
Greenhouse chemistry
Chemistry experiments at home in the greenhouse
The electrolysis of dilute sodium chloride solution
Safety
Wear safety spectacles
Do not get any of the solutions in your eyes
Wear gloves.
Wash any spillages that come in contact with the skin off immediately with cold water.
Be careful of getting the electrolysis solution on your on your skin and especially not in your eyes, as it effectively becomes a dilute bleach solution during the electrolysis process.
There is a jump after about 2 and a half minutes into the video clip when a section of the movie file was cut out. During the cut section the electrolysis of the solution was proceeding.
Dilute sodium chloride solution was electrolysed using carbon fibre electrodes and a 6v battery.
One of the carbon fibre electrodes was inserted into a plastic dropping pipette in order to collect the gas formed around the electrode during electrolysis.
Numerous small holes had been made in the walls of the plastic pipette using a steel pin.
The carbon fibre electrode inserted into the pipette was connected to the negative terminal of the battery and became the cathode.
The second carbon fibre electrode was connected to the positive terminal of the battery and became the anode.
Gas bubbles were produced around both electrodes and there was a strong smell of chlorine.
The gas produced around the cathode formed in small bubbles which slowly merged together forming a large bubble which moved along the slightly sloping pipette and collected in the bulb of the pipette for testing.
All of the equipment used can be washed and re-used for further electrolysis experiments.
Both carbon fibre electrodes could be placed in pipettes, allowing any gaseous products to be collected using the method shown.
