Jeff; Stay away from the 380 vdc. I was the one that mentioned it. It was used last year during my early studies in making CS. I had an S.E.M. made of one of my runs at a Texas univ. and the photos of the particles showed brickbats. Actually the particle size was 18 to 80 nm. (which is huge). Now it is interesting in that I have saved samples of much of my work and I find now almost a year later the Tyndall is very weak and the PPM has increased greatly. This is not a one time fluke as I have gone back and rechecked other sample made by parameters and find the same.
I my many years in manufacturing engineering in the electron device field I have learned not to argue with success, but some factor has caused the particles to dis-agglomerate ???? Lvdc (28-36v) makes excellent CS, if you use continually stirring and polarity switching solves the cathode treeing and reduces the sludge. Memory tells me that Fred said to use demineralized water, but when I have tried it the CS is always milky in color. That does not happen with DW. If you are not properly trained in high voltage then stay away from it. It can kill or burn your house down. (during my nine year in Centrally America I ran an electrical utility, and I know high voltage hazards.) The first time you draw an two foot arc with that 20 Kv it will scare the "hell" out of you. I plan on one more entry in this is then I must check out to get ready for the coming disasters. "Ole Bob" > > > > > -- The silver-list is a moderated forum for discussion of colloidal silver. To join or quit silver-list or silver-digest send an e-mail message to: [email protected] -or- [email protected] with the word subscribe or unsubscribe in the SUBJECT line. To post, address your message to: [email protected] List maintainer: Mike Devour <[email protected]>
