In 1767, Swedish chemist Torbern Bergman synthesized alum by boiling alunite in sulfuric acid and adding potash to the solution. He also synthesized alum for a reaction solution amongst sulfates of potassium and earth of alum, demonstrating that alum was a double salt. Relative atomic mass The mass of an https://paid-online-surveys30730.blogunteer.com/28096301/facts-about-aluminium-revealed