u/TheeSgtGanja

One is refined to 99.99% by using a silver cell after initial refining. The other was refined to between 98.5 & 99.9% using chloride precipitation from nitric. Even though its rinsed until clear copper sneaks in. Most times I achieve over 99%. Was using a steel mold for a bit which was introducing small amounts of iron. So now that mold is only used for making anode's and graphite molds afterwards.