How to Use Bleach on Gold Ore to Remove Gold | Sciencing
How to Leach Gold Ore With Chlorination. Updated April 24, 2017. ... Filter the ore and bleach solution to remove all the impurities, such as soil and rock fragments. Collect the filtered gold chloride solution in a flask. Place powdered sodium metabisulfate in another flask and dissolve with water. This forms a solution of sodium bisulfate.