This post is a continuation of a post started here:
Inquartation Leftovers
Here's what I had leftover after redissolving the gold powder with several washes of HCl-Cl:
The dark colored pieces (purplish) are gold-silver alloy coated with silver chloride. The red brown is gold powder stuck in the recesses of the leftover material. From this I can conclude that the gold silver alloy was not mixed completely before the alloy went into the nitric acid. This incomplete mixing caused the alloy in these pieces to have the wrong ratio of gold to silver (3 parts silver to 1 part gold is correct) which is why they did not dissolve completely in the diluted nitric acid.
From this experiment it is obvious that proper mixing of the gold and silver is very important when inquarting. It also brings to mind that too much silver is better than too little when inquarting.
Your comments and suggestions are welcomed.
Steve
Inquartation Leftovers
Here's what I had leftover after redissolving the gold powder with several washes of HCl-Cl:
The dark colored pieces (purplish) are gold-silver alloy coated with silver chloride. The red brown is gold powder stuck in the recesses of the leftover material. From this I can conclude that the gold silver alloy was not mixed completely before the alloy went into the nitric acid. This incomplete mixing caused the alloy in these pieces to have the wrong ratio of gold to silver (3 parts silver to 1 part gold is correct) which is why they did not dissolve completely in the diluted nitric acid.
From this experiment it is obvious that proper mixing of the gold and silver is very important when inquarting. It also brings to mind that too much silver is better than too little when inquarting.
Your comments and suggestions are welcomed.
Steve
