> > It seems we may be altering the PH of the water > around our silver wires when we are making CS.
Not by much. Alkaline water requires alkaline minerals to be present to which one or more OH- ions attach. > Is it possible that this is why we get the light gray colored > surface on one silver electrode and a darker coating on > the other silver electrode, (not the tree-ing or feathers) > even though the electrodes are made of the exact same alloy?? The grey colour is elemental silver powder which origonate from the dark electrode (anode, positive) as silver ions (Ag+), travel through the solution and find themselves at the cathode (negative electrode), aquire an electron and become elemental silver (Ag). The dark coating of the anode is probably due to the disassociation of silver ions from the silver metal. > Alkaline water making related questions: > > 1. Does anyone know what DC voltage the water ionizers use to > create the alkaline/acid water? Quite low voltage is suspect as hydrogen gas will be formed at about 0.5V and oxygen gas at about 1.6V. Generally water ionisers only cause the migration of elements or minerals to the electrode of opposite sign, so the alkaline minerals, having a positive charge migrate to the negative electrode, bringing their associated OH- water ions with them. It is the OH- ions which render the water alkaline. > 2. The other question is: what is the membrane material used to separate > the alkaline/acid pH water in the chamber? Some kind of available > reverse osmosis sheet maybe available from a water conditionong co.?? Yes, anything that alows ions to pass, but not water molecules. Porous ceramics are quite often used. > We may be a lot closer to making alkaline water then we realize. > Let's find more information and see if it's possible to > go further with a simple design as we did with CS! I guess there is no reason why silver electrodes cannot be used, except that silver ions will be generated at any voltage above 0.8V and silver compounds (ie. silver cloride) also. This is probably safer than using stainless steel electrodes. Most ionisers use platinum or paladium coated electrodes or graphite electrodes. > Tom Bassett Ivan -- 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]>
