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Disolving Gold Ore With Hydrocloric Acid And Peroxide

gold refining forum.Com.Hobbyists and professionals helping one another.33% hydrochloric acid 52% water and add enough to cover your ore.And to use an orp meter to maintain 1,000 mv and to not go lower than 400 mv the reaction is complete when the voltage does not change when you add more hcl but read the webpage it has a moderate detail.

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