Gold parting in 1860's Australia. It is able to refine gold up to 99.5% purity. The process involves blowing a stream of chlorine gas over and through a crucible filled with molten impure gold. Impurities in the gold form chlorides before the gold does and these insoluble salts are removed from the melt by skimming the surface. Invented by Emil Wohlwill in 1874, this produces the highest purity gold (99.999%). It is an electrolytic process using pure gold for the cathode (or titanium as a starter cathode) and chloroauric acid (gold chloride-hydrochloric acid) as the electrolyte; this is made by dissolving gold
Commodity currency on these harmful processes reducing their affiliated externalities. Countries with commodity currencies have difficulty changing their behaviors and reducing externalities with respect to the commodities that have a profound impact on their currencies. For example, the Canadian dollar is closely tied to soybeans and oil. The production of oil is extremely harmful to the environment however reducing its production through Cap and Trade programs or production taxes can be devastating to the Canadian Dollar. Commodity currency A commodity currency is a name given to some currencies that co-move with the world prices of primary commodity products, due to these countries'