hi, after making a lot of 20ppm and also 320 ppm with success, today I mess up something with my first 40ppm process.
I heated 2L of DW 001ppm to 50degres C then put 36 drops electrolyte (18 drops is 1ml for my dropper)and 20 drops 50/50 reducing agent.current was 10mA.started the process and the water temp rise slowly with the process until 70 degrees C.cleaned up the electrodes every 30 min.something strange was when I pull out the electrodes for cleaning with the torch I saw something like greenish moisture on the anode .from what I've read, a lot of people here don't heat so much, maybe 50 degrees is enough?what do you think, where I've mess up things?
https://www.youtube.com/watch?v=FhW6ku9BFDM&feature=youtu.be
Alex,
The batches I make are 40 and 320 pretty much exclusively and always 1 litre volume.
For 40ppm try 1 litre first and see how you get on with this process:
1. Room temp DW (1litre about 20 - 22 degrees C)
2. Start heat and spin (heat dial at about 12 o'clock only or the point at which you are getting heat in).
3. Add your 1ml Electrolyte (for 1 litre volume)
4. Add your karo
5. let the temp get up to about 30 degrees
6. Start your cell - I run at 10ma with a bullion
7. Keep an eye on the temperature but don't go above 40 C. (You really don't need to).
8. Finish the cell
9. Turn off the heat - Leave it spinning for a few minutes.
10. See how it looks.
Alternatively
Follow the above but use / try 0.6g of maltodextrin as your reducer.
I get the cleanest most consistent batches ever using malto. (tried this after reading some of Wayne's posts).
for both my preferred batches (40 and 320) I start the cell at 30c and let them rise for the duration of the runs. I keep the 40ppm to 40c max (and only 40c by the end of the 1 hour run time)
The 320 I start at 30c and let it slowly rise to about 75c by the end of the 5 1/2 hour run (15ma with a bullion)
Hope this helps.