Potash Supply

From the March 2011Hard Rock Analyst Journal David Coffin & Eric Coffin, HRA Advisories Cloth-dying and soap-making have employed residue from boiled plant material since ancient times.  The plants are reduced to brine and that evaporated until only the useful “potash” remains.  In the 19th century the active ingredient in this precipitate was . . . → Read More: Potash Supply