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Carl Bosch
(August 27, 1874 - April 26, 1940)
Born in the Germany
Year of Discovery: 1909

carl_bosch_wiki_fair_use
Engineered the Production of the Single Most Important Product Affecting the World’s Population - Synthetic Fertilizer

Did you know that there is something in common between your morning cereal and the blue jeans you are wearing?  Both are byproducts of the work of German chemist and engineer Carl Bosch.

Carl Bosch was born in Cologne, Germany on August 27, 1874. His father, also named Carl, was a plumbing and gas supply entrepreneur.  His uncle was Robert Bosch, who led the way in the creation of the sparkplug.  It may have been the influence of his family that encouraged young Carl to take an early interest in science and technology.  He worked in a machine shop as a metal worker after finishing high school. Bosch began his studies in mechanical engineering and metallurgy, the study of metallic elements, at the Technical University of Charlottenburg in 1894.  Within two years, he had transferred to the University of Leipzig to study chemistry and received his doctorate in 1898.

After graduating, Bosch was given his first job as a chemist at Badische Anilin- und Soda-Fabrik (a chemical company still in existence today - BASF).  BASF made fabric and other coal tar dyes.  They recruited Bosch to create a synthetic indigo dye for cotton, the color used in blue jeans.  Carl Bosch was married in 1902 to Else Schilback and had a son and a daughter.  Dedicated to science and lifelong education, Bosch was an avid collector of minerals, gem stones, butterflies and beetles.  While working at BASF in 1908, Bosch met Fritz Haber who had been working on synthesizing ammonia from hydrogen and atmospheric nitrogen.

One of the primary chemicals in fertilizer that makes plants grow is nitrogen. Nitrogen is very common in the atmosphere, but is very difficult to get out of the air and into a liquid or solid form that can be used. Doing so is known as “fixing” nitrogen. This can only occur naturally with bacteria or lightning. At the beginning of the twentieth century scientists had been trying for more than 100 years to fix or synthesize nitrogen in a man-made manner.

Nitrogen based fertilizers provide exceptional nutrients to crops, but in the early twentieth century the demand far exceeded the supply.  At the time, sodium nitrate, the chemical needed to produce fertilizer was primarily available on the coast of Chile.  There, a 220 mile coastline of bird droppings, five feet deep was the largest source in the world.  The global dependence on Chile for this natural source of ammonia and nitrogen compounds was a concern for many political leaders. 

Haber solved the 100-year-old problem and was able to create very small amounts of ammonia using high pressure, specific temperatures, and metal catalysts. However, he only did so with a 75 cm tall apparatus and by using rare and expensive catalysts such as uranium and osmium. Bosch took up the problem of making it in large quantities. Experimenting on many alternatives, he finally discovered that nitrogen could be refined by an available iron compound.  But his major engineering problem was that the pressure and temperatures needed were so high that no large containers existed in which to perform the process. Bosch set to work developing such containers, and performed over 20,000 individual experiments in over 20 reactors.  Amongst Bosch’s many discoveries, he found that the chamber needed for the reaction had to be double-walled in order to equalize the pressure and maintain temperature. Further problems which had to be solved were the construction of safe high-pressurized blast furnaces and finding a cheap way of producing and cleaning the gases necessary for the synthesis of ammonia. Step by step Bosch increasingly made larger manufacturing units. Within four years Bosch was producing ammonia in a container 8 meters tall. He then created a factory - the Stickstoffwerke (Nitrogen works) in Oppau, Germany, that was opened in 1913. With it Bosch essentially created the fertilizer industry we know today that provides practically every country in the world with sufficient fertilizers for agricultural purposes.

Vaclav Smil, in his book Enriching the Earth, says that the Haber-Bosch process "has been of greater fundamental importance to the modern world than ... the airplane, nuclear energy, space flight, or television. The expansion of the world's population from 1.6 billion people in 1900 to six billion in 2000 would not have been possible without the synthesis of ammonia."  The  International Fertilizer Industry Association reports that over 100 million metric tons of nitrogen produced by the Haber-Bosch Process are applied annually to global crops, over half of it to cereal crops. Smil and others have estimated that more than 2 billion people, about 40% of those alive are fed by food grown using fertilizer from the Haber-Bosch process.  Without it, the world could not sustain the 6 billion people alive today nor the projected population growth to 10 billion that is predicted later in this century.

Bosch’s scientific work created a capacity to sustain the world’s need for food production, but his labors also provided the ability to destroy life.  He was so passionate and dedicated to his native Germany, that he used his genius for immoral and destructive purposes when World War I broke out. Meeting with Germany’s political leaders, Bosch was instrumental in turning Germany’s industrial output into bomb making. The armies in World War I became stalemated in what is known as trench warfare, with each side massing huge armies dug into the ground, but making little progress. For more than two years each side fired munitions back and forth, killing men steadily, but neither side advancing. In order to produce enough munitions, Bosch built a new factory that allowed Germany to not be defeated, even though they were not winning the war.

After the war Bosch stayed active at BASF. In 1931 he received the Nobel Prize in Chemistry for his work in large scale chemical synthesis and high pressure chemistry. It was the first Nobel in chemistry given for practical rather than theoretical discoveries. In 1937 he was appointed president of the Kaiser Wilhelm Institute, Germany’s highest scientific position. However, as a notable critic of Nazi policy, Bosch was removed from this position when Hitler became Chancellor.  Carl Bosch died on April 26, 1940.

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Introduction by April Ingram


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Table of Contents

Introduction
Links to More Information About the Scientist
Key Insight
Key Experiment or Research
Quotes by the Scientist
Quotes About the Scientist
Anecdotes
Fun Trivia About The Science
The Science Behind the Discovery
Personal Information
Key Contributing Scientists
Science Discovery Timeline
Recommended Books About the Science
Books by the Scientist
Books About the Scientist
Awards
Major Academic Papers
Curriculum Vitae
Links to Science and Related Information on the Subject
Sources

 








Links to More About the Scientist & the Science

Wollheim Memorial:
http://www.wollheim-memorial.de/en/carl_bosch_18741940

Google Books entry about Bosch after WWI
Go to the link here

Wikipedia entry:
http://en.wikipedia.org/wiki/Carl_Bosch




Sliders & Images here



Image Flow Here



Key Insight




Key Experiments or Research




Quotes by the Scientist




Quotes About the Scientist




Anecdotes




Fun Trivia About the Science




The Science Behind the Discovery



Personal Information




Key Contributing Scientists to the Discovery




Scientific Discovery Timeline




Recommended Books About the Science




Books by the Scientist




Books About the Scientist

Enriching the Earth: Fritz Haber, Carl Bosch, and the Transformation of World Food Production. By Vaclav Smil. The MIT Press, 2001. Smil is a Distinguished Professor in the Faculty of Environment at the University of Manitoba in Winnipeg, Canada. The book is well written and an excellent source about Haber and Bosch’s creation.

Hell's Cartel, IG Farben and the Making of Hitler's War Machine. By Diarmuid Jeffreys. Metropolitan Books, July 2008




Awards




Major Academic Papers Written by the Scientist



Curriculum Vitae



Links to Information on the Science





Sources/References




 
Comments (4)
4 Monday, 12 September 2011 16:50
Jerry Baker
Thanks for the type information. Should be corrected now.
3 Friday, 26 August 2011 14:43
Another typo
Lightning, the discharge of atmospheric static electricity, is written as "lightening", the process by which something is made lighter or clear.
2 Friday, 26 August 2011 08:47
Paul
It should be "Badische Anilin- und Soda-Fabrik". Minor typo, otherweise good article
1 Sunday, 04 April 2010 21:00
Jerry
Interesting man

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