There response was that they have placed the DE in strong acid solutions (similar to stomach acid), and the bonds of the heavy metals did not break. (westonaprice.org)
Home use of an acetic acid / boric acid solution such as Dermapet Malacetic Otic can be effective in treating yeast infection. (dog-health-guide.org)
«This is a problem in the oceans, in large part, because many marine organisms make shells out of calcium carbonate (think corals, oysters), and their shells dissolve in acid solution,» said Werne. (livescience.com)