Six and a Half Troy Ounce Pure GOLD BAR

https://www.ebay.com/usr/sreetips The main purpose is to see if refluxing the vapors from the nitric acid boils will increase the efficiency of the nitric acid. I inquarted some karat gold with sterling silver (770 grams total). Then I divide the inquarted gold evenly and process one half in a covered beaker, and the other half in a boiling flask fitted with a reflux condenser. The results may surprise you.