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 electric motor producing 116 hp and 270 Nm of torque. The iEV7S comes with a 39 kWh battery, and the range of the iEV7S is 280 kilometers. The same platform later spawned the SOL E20X from SOL, the EV joint venture between Volkswagen and JAC, with only a minor restyling for the front and rear DRGs in an attempt to recreate SEAT's styling on the iEV7S. 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