I just finished my first round of experiments. First I wanted to determine if it really is possible to get nearly pure ionic silver by freezing EIS. I had already determined that freezing will remove the particulate portion, but was unsure if it would remove the ionic as well. After all, freezing salty water will produce ice almost completely devoid of salt.
1. I put a quart of EIS (80% ionic) into a HDPE plastic bottle and froze it overnight. It was in the freezer for about 20 hours. 2. I removed it this morning and let it thaw all day. 3. I poured some into a glass and poured some of the original EIS into an identical glass. 4. Using a laser I determined that the majority of the particles were absent. A strong tyndall initially was about 20 times stronger then the tyndall after freezing. 5. Adding a pinch of salt to distilled water, the original EIS and the thawed EIS indicated that much of the ionic portion of the EIS remained. However the milkiness was about half what it was in the original EIS when salt is added. There was no milkiness in the distilled water with salt added. This is very crude, I made no instrumented measurements, just eyeballed the results. It appears that the following take place: 1. 95% or so of the particulate are removed by freezing. Either the particle count went way down, or the larger particles got removed and the smaller ones did not, hard to say by just looking at tyndall. 2. Freezing will reduce the ionic content somewhat as well. Quite possibly as the particles concentrate, some of the ionic portion plates out onto them. Anyway, diluting the original EIS and salt solution until the milkiness was the same indicated that the loss of ionic silver was around 50%. One difficulty in comparing was that the frozen one has a blue hue to the milkiness, and the EIS one had a slightly yellow tinge. I believe that the ionic portion that survives does actually end up being excluded by the ice as expected, and forms silver hydroxide, then when it thaws the silver particles that aggregated stay out of solution, and the silver hydroxide simply dissolves again producing ionic silver. A rough approximation from this experiment indicates that an EIS with 80% ionic and 20% particulate, will end up with about 98% ionic and 2% particulate (but at only about 50% of the original ppm). This therefore does appear to be a good way to minimize the particulate portion in EIS compared to the ionic portion, increasing the ratio from 4:1 to about 50:1. Be aware that this was very crude, and I could still be off by a significant margin in my estimates using visual titation. Marshall -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Silver List archive: http://escribe.com/health/thesilverlist/index.html Address Off-Topic messages to: silver-off-topic-l...@eskimo.com OT Archive: http://escribe.com/health/silverofftopiclist/index.html List maintainer: Mike Devour <mdev...@eskimo.com>
