SparkNotes: The Color of Water: Chapters 19–21

For true "electro-colloidal" silver, the particle size range that can appear yellow is .01 to .001 microns (10 to 100 angstroms) because that is the size of silver particle that best absorbs the indigo light, leaving only its inverse color, yellow, to be observed.

A summary of Chapters 19–21 in James McBride's The Color of Water

In the metric system, one liter of water weighs 1000 grams, and one milligram is one thousandth (1/1000) of a gram, so 1 mg/L is the same as 1 ppm, as long as we are talking about water.

The Color of Art: Site map - Pigments and Paints

The presence of salt increases the electrical conductivity of the water and this dramatically speeds up the reaction.

Through The Color of Water, James McBride demonstrates that one perceives his identity through feedback from others as well as through his own thoughts and emotions....