Chaim Weizmann - Scientific Career

Scientific Career

Weizmann lectured in chemistry at the University of Geneva between 1901 and 1903, and later taught at the University of Manchester. He became a British subject in 1910, and while a lecturer at Manchester he became famous for discovering how to use bacterial fermentation to produce large quantities of desired substances. He is considered to be the father of industrial fermentation. He used the bacterium Clostridium acetobutylicum (the Weizmann organism) to produce acetone. Acetone was used in the manufacture of cordite explosive propellants critical to the Allied war effort (see Royal Navy Cordite Factory, Holton Heath). Weizmann transferred the rights to the manufacture of acetone to the Commercial Solvents Corporation in exchange for royalties.

First Lord of the Admiralty Winston Churchill became aware of the possible use of Weizmann's discovery in early 1915, and Minister of Munitions David Lloyd George joined Churchill in encouraging Weizmann's development of the process. Pilot plant development of laboratory procedures was completed in 1915 at the J&W Nicholson & Co gin factory in Bow, London, so industrial scale production of acetone could begin in six British distilleries requisitioned for the purpose in early 1916. The effort produced 30,000 tonnes of acetone during the war, although a national collection of horse-chestnuts was required when supplies of maize were inadequate for the quantity of starch needed for fermentation. The importance of Weizmann's work to the ongoing war effort encouraged Foreign Secretary Arthur Balfour to issue the Balfour Declaration of 1917 in support of Weizmann's Zionist objectives as Weizmann ascended to the presidency of the British Zionist Federation.

After the Shell Crisis of 1915 during World War I, Weizmann was director of the British Admiralty laboratories from 1916 until 1919. During World War II, he was an honorary adviser to the British Ministry of Supply and did research on synthetic rubber and high-octane gasoline. (Formerly Allied-controlled sources of rubber were largely inaccessible owing to Japanese occupation during World War II, giving rise to heightened interest in such innovations).

Concurrently, Weizmann devoted himself to the establishment of a scientific institute for basic research in the vicinity of his sprawling estate, in the town of Rehovot. Weizmann saw great promise in science as a means to bring peace and prosperity to the area. As stated in his own words :

"I trust and feel sure in my heart that science will bring to this land both peace and a renewal of its youth, creating here the springs of a new spiritual and material life. I speak of both science for its own sake and science as a means to an end."

His efforts led in 1934 to the creation of the Daniel Sieff Research Institute, which was financially supported by an endowment by Israel Sieff in memory of his late son. Weizmann actively conducted research in the laboratories of this institute, primarily in the field of organic chemistry. In 1949 the Sieff Institute was renamed the Weizmann Institute of Science in his honor. Weizmann's success as a scientist and the success of the Institute he founded make him an iconic figure in the heritage of the Israeli scientific community today.