MZ_MakerBirthday.gif
bunsen.jpg

Although best known today for the eponymous Bunsen burner, German chemist Robert Wilhelm Eberhard Bunsen (Wikipedia), born on this date in 1811, had a foundational role in many areas of modern chemistry. He discovered the use of iron oxide hydrate as a precipitating agent for arsenic, which even today has applications in treating contaminated groundwater. His experiments with arsenic cost him an eye (by an explosion of pyrophoric tetramethyldiarsine) and almost cost him his life, by poisoning. He invented the Bunsen cell, an early electrochemical “battery” that improved upon existing designs by replacing precious metallic platinum with common carbon in the cathode. He used his new cell, among other things, to isolate pure magnesium for the first time, by electrolysis. With Kirchoff, he was instrumental in the development of flame-emission spectroscopy, and used the technique, for which his famous burner was developed, to discover two then-unknown elements–cesium and rubidium. He was, even among the acerbic European academic chemists of his day, widely regarded for his kindness, even temperament, and good character. He died in 1899, aged 88.

Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and makezine.com. My work has also appeared in ReadyMade, c’t – Magazin für Computertechnik, and The Wall Street Journal.


Related
blog comments powered by Disqus

Related Supplies at Maker Shed

Follow

Get every new post delivered to your Inbox.

Join 28,418 other followers