Royal water, or better known for its Latin name Aqua regia, is a fuming, corrosive liquid solution first invented by an Arab alchemist back in the 8th century. It is a mixture of one part of nitric ...

Over the previous decades, applications of acid digestions for the determination of gold have reported low or variable gold recoveries from geological samples on a consistent basis. 1,2 Poor gold ...

One thing holding back e-waste recycling is the actual recycling process itself. We need cheaper, safer, cleaner, or more effective methods of separating and recovering the valuable elements from ...