Andrew takes us on a journey to London's Shepherd's Bush Market in 1960, exploring the splendid chemistry of potassium permanganate. Along the way, he will explore redox reactions, colour changes and even the “devil’s element”, phosphorus. Subscribe for regular science videos: http://bit.ly/RiSubscRibe Contents: 0:00 Introduction and a trip to Shepherd's Bush Market 7:10 Intro to Potassium Permanganate 14:50 Dilutions and Avogadro's number 17:00 The chemistry of manganese 24:25 Complex ions 31:40 Oxygen and combustion 40:00 Phosphorus Andrew Szydlo is a chemist and secondary school teacher at Highgate School, well-loved by pupils and Ri attendees alike. The Ri is on Patreon: https://www.patreon.com/TheRoyalInstitution and Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution and Tumblr: http://ri-science.tumblr.com/ Our editorial policy: http://www.rigb.org/home/editorial-policy Subscribe for the latest science videos: http://bit.ly/RiNewsletter Product links on this page may be affiliate links which means it won't cost you any extra but we may earn a small commission if you decide to purchase through the link.