In 1767, Swedish chemist Torbern Bergman synthesized alum by boiling alunite in sulfuric acid and including potash to the solution. He also synthesized alum being a response item involving sulfates of potassium and earth of alum, demonstrating that alum was a double salt. Deal with from the patent granted to https://mad-mayker68787.smblogsites.com/28643066/5-easy-facts-about-aluminium-described