Action of charcoal on aqueous solutions of silver nitrate

Abstract

1. A method has been devised for estimating the amount of reduced silver, formed by the action of pure sugar charcoal on silver nitrate solutions.

2. Determinations have been made of: (1) adsorption of silver, and (2) reduced silver, and (3) the acid liberated.

3. The influence of the following factors has been investigated: - (1). concentration of silver nitrate. (2). Acidity of the solutions. (3). Period of contact of the charcoal with the silver nitrate. (4). Treatment with air, oxygen, nitrogen, hydrogen, and carbon dioxide,at different temperatures.

4. Determinations of the adsorption of (1.) nitric acid, (2) sodium hydroxide, and (3) iodine, have been made in the case of certain of the charcoals.

5. A hypothesis has been advanced to correlate the results obtained.