Colloidal Silver | Silver Colloids

What is the highest concentration of ionic silver that pure water will keep in solution?

If no other purposely introduced anions are present, the maximum concentration of silver ions that pure water can hold at room temperature in an unsaturated solution is 13.3 ppm. In practice, there is substantial dissolved CO2  in the water which provides additional anions, so a higher concentration of silver ions is possible without saturation.

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