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 S2 Refine S2 The Refine S2 is a subcompact CUV produced by JAC Motors under the Refine sub-brand. It was positioned between the Refine S2 Mini and the Refine S3 compact CUV. The Refine S2 was launched on the 2015 Shanghai Auto Show in April 2015, and was later launched in the Chinese market in August 2015. Pricing of the Refine S2 was revealed at the market launch with prices ranging from 58,800 yuan to 75,800 yuan. The JAC iEV7S is essentially the electric version of the Refine S2. It costs 119,500 yuan after subsidies, and it is powered by an