Hi,
Here's my 1st attempt at making Colloidal Silver (20ppm)
Reducing Agent: equal parts Light Karo & Distilled Water mixed
Electrolyte: 12.4gr Sodium Carbonate (washing soda) mixed in 100ml distilled water
*I didn't bake the Sodium Carbonate - is that ok?
First I added 1L distilled water & 20 drops of electrolyte to the beaker - magnetic stirrer activated.
1 inch wide vortex
Temperature set to 65 degrees celcius
Inserted 2x 14g silver wire 99.99% electrodes.
Positive was inserted around 5 inches. Negative 1cm deep.
Going for 30min @ 10mA for 20ppm
I started off with my lab power supply set to 27v & found it difficult to maintain a solid 10mA, was flickering between 0.01amps & 0.02 amps (10mA and 20mA)
(It's difficult to accurately get the milliamp reading on my lab power supply as the digital read out shows 0.01 amps not milliamps.)
This setting was for 5 minutes.
Then changed the voltage to 13.5 and it maintained a solid 0.01 amps so I ran this for 25min.
After the 30min total I turned the power supply off, removed electrodes and added the Karo/distilled water solution (4 drops)
The finished product changed colour from clear to yellow
The small cup next to my beaker is 35ppm Colloidal Silver I purchased from ebay just for comparison.
Is it important to have more accuracy with my milliamp setting or is what I did ok?
Also besides the blackening on the silver wires there wasn't any build up. Is that ok?
(both silver wires have black on them beacause I swapped them 5 minutes into the process)
Is my end product safe to use?
Many thanks,
J