Hi there,
First time poster, but I've been making colloidal gold successfully with the maltodextrin method, #3 I believe it is. I feel fairly confident in the procedure now; I have my own understanding for the temperatures and the amounts. However some things I haven't had the time to test or test repeatedly, as making a batch itself is pretty time-consuming. And waiting months to see how well the batches hold up is, well.. the batches don't last that long.
Basically my cook consists of a tiny pinch of sodium carbonate, appropriate amounts of salt and maltodextrin. I heat it up to at least 162F and then apply the current, 24V 1A. Electrode distance does not seem to matter too much. Keeping temperature slightly above starting temp is enough to produce good colour without too much evaporation. When the time's up, I remove the electrodes and cook the colloidal gold to about 200F for ten minutes or so. This seems to deal with the chlorine.
- It seems that I can up the amount of salt & maltodextrin to approach 50 PPM successfully. I get a deep red, almost purple. Is the problem with 50 PPM that there will be more sediment, and sooner? Otherwise it's working surprisingly well.
- I have a table salt here that includes E535, sodium ferrocyanide. Sounds scary. How dangerous is this if used to produce colloidal gold? I realize I should simply not use it (and will not use it in the future), but I made a couple of batches with it already so I'm curious.
- I remember reading that using the electrolysis, salt & maltodextrin method, when the reagents are well-measured and they run out, I can 'overshoot' the cook and it won't produce additional gold ions. So to reach PPM more or less accurately, I can simply let it run a little longer. However I'm still seeing bubbles off the electrode no matter how long I run it. What's up with this?
Thank you for this fantastic resource. I've been making silver with my own generator for years (Germany has an active generator building community), but never colloidal gold.