I am using approximately a 20% excess stoichiometric quantity of dilute sulfuric acid (10% w/v) to tumble damp silver chloride with iron.
It gets really freaking hot.
Am I using too much iron? I use large ball bearings in various sizes with a little bit of squarish steel cutoffs just so I get tumble action as opposed to everything just rolling along the side of the barrel (5 gallon bucket)
Biggest problem is getting the iron out. The silver chloride / silver powder will cake to the iron, and if you don't get it off, it forms a rust layer that follows the silver, it can also prevent full conversion.
It gets really freaking hot.
Am I using too much iron? I use large ball bearings in various sizes with a little bit of squarish steel cutoffs just so I get tumble action as opposed to everything just rolling along the side of the barrel (5 gallon bucket)
Biggest problem is getting the iron out. The silver chloride / silver powder will cake to the iron, and if you don't get it off, it forms a rust layer that follows the silver, it can also prevent full conversion.