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
Refine M5 Hyundai Starex, with the front DRG being completely the same as the Starex while featuring a independently developed rear end design, replacing the tail lamps, tail gate, and rear bumper. In the first few years of its introduction, the M5 (second generation Refine MPV) was sold alongside its predecessor. The second generation Refine M5 MPV debuted as a concept named the JAC Refine IV at the 2010 Beijing Auto Show. The production car debuted at the 2011 Shanghai Auto Show in April 2011. After the establishment of the Refine brand, the JAC Refine MPV was renamed to Refine M5, positioning