Some people are under the misconception that colloidal silver generators can produce alkaline water of pH 10. This is absolutely false. It is however possible to produce colloidal silver which reads pH 10 on an electronic pH meter. This is because standard electronic pH meters have silver based probes which do not read correctly in solutions containing silver, gold, and most transition metals.

From the pH Meter Guide at

Since standard electrodes contain silver in the reference solution within the electrode, there are numerous applications where this kind of electrode can’t be used. The subsequent solutions cannot be measured with general purpose electrodes.

Heavy metals including silver, iron and lead
Organics such as acetone
Low ion solutions such as distilled water
High sodium concentrations such as solutions containing large amounts of salts

The standard electrode supplied with most electronic pH meters is the silver based electrode.

The true pH of the colloidal silver solution can be determined by using the correct pH meter electrodes, called Calomel electrodes. Calomel electrodes are based on mercury instead of silver, so silver in the solution does not interfere and produce a false reading. It can also be verified with Hydrion pH test paper, which is also not affected by metal ions in the water.

A knowledge of general chemistry and the periodic chart of the elements should also make it clear that silver solutions cannot be pH 10 unless there is sufficient sodium, potassium, magnesium, calcium, or other elements present from columns one or two of the periodic chart (except hydrogen). Elements from column 1 are called alkali metals because they react with water to form hydroxides. Elements from column 2 are called alkaline earth metals and also form hydroxides in water. Of these elements, only sodium, potassium, calcium and magnesium are friendly to the human body. Beryllium for example is very toxic.

Normal water has a pH close to 7 because a portion of the water ionizes creating 10-7 moles of H+ ions and 10-7 moles of OH ions per liter of water. The 7 comes from the mathematical operation of taking the logarithm of 10-7 which is -7 and multiplying that by -1 giving 7.

To make water more acid, there must be more H+ ions than OH ions. To make water more alkaline, there must be more OH ions than H+ ions. At pH 8, there is 10-8 moles of H+ ions, and 10-6 moles of OH ions per liter. The exponents always add up to 14.

Where do the extra OH ions come from? They come from the alkali or alkaline earth hydroxides. Thats why only these elements can raise the pH of the water to any extent.

Silver does not form hydroxides with water. During electrolysis, silver hydroxide is formed at the anode, but quickly decomposes into silver oxide, which is not an alkaline substance.

At pH 10, there must be 1000 times as many OH ions and 1/1000 times as many H+ ions.

Anyone claiming that their colloidal silver equipment produces ph 10 alkaline water is proving their ignorance of basic chemistry.

Starting with distilled water with a milliliter of 1 molar sodium carbonate, the pH measures slightly over 7 to 7.5. After reducing the resultant silver with invert sugar, the pH is usually less than 7 because of the formation of gluconic acid which results from the oxidation of the sugar. Never is the pH anywhere near a true value of 10.


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