A weekly tour of the periodic table, from Chemistry World, the magazine of the Royal Society of Chemistry.
http://www.chemistryworld.com/podcasts
Sodium cyanide
This week marks the 20th anniversary of the Baia Mare disaster, when toxic sodium cyanide spilled from a gold processing plant led to ecological damage on a huge scale. Mike Freemantle tells the tragic tale and explores the poison's place in precious metal processing.