John, Depending on the parameters of your brewing the CS may be colorless to day and to morrow it may turn yellow. No problem.
The fact that the current increases tells you that silver ions are going into solution. I don't know your parameters but a .48 ma at 20 minutes is unrealistically low. I would expect about 5 to 6.5 ma.at the end of 45 to 60 minutes. Did you check the CS with a laser pointer? My gut feeling is that you may have a ppm of 1 if any !!!!!! Yesterday a ran a test lot for someone and if you can plot the data you may be in for a surprise. Make the "X" axis (horizontal)time in 15 minute intervals(1" spacing), Make the "Y" axis (vertical) about 1 ma per inch. The data is in the form of "Y"/"X" i.e.0/.26 says at time zero the current was ,.26 ma. Plot this data; 0/.26, 15/.61, 30/1.47. 45/2.51, 60/3.38, 70/16.4 (that is correct) Things happen fast after one hour. This measured 10.5 ppm. At about 6 ma. the ppm would be about 6-8. The parameters for this was; 1"spacing, 27 vdc, 3-1/2" immersion. To reduce the black deposit on the electrodes reverse the wires on the brewing cup every ten minutes. Does this shed any light on what you are doing. If you want a ppm measurement it will only cost you $7.50 for one sample and $5.00 for each additional sample in the same shipment. Robert -- 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]>
