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| Called the “Father of Surface Chemistry,” Irving Langmuir won it “for his discoveries and investigations in surface chemistry.” He was the first non-academic chemist to receive the Nobel Prize. The surface of a liquid is where evaporation and adsorption occur. Adsorption takes place when vaporized gas is assimilated from the air into the surface of a liquid. Evaporation is the opposite process of gas particles escaping from the surface of a liquid into the air. |
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Irving Langmuir
1881 - 1957 |
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| At equilibrium, the process of adsorption and evaporation are occurring at exactly the same rate. Langmuir’s equation shows that the rate of adsorption (and therefore the rate of the opposite process of evaporation) is directly proportional to the size of the liquid surface area in contact with the air. This is the foundation for the reduced surface area of ENDO/BATH™. |
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| Dr. Langmuir was interested in interfaces, where different phases (like liquids and gases) interact. His studies led to the development of a brighter light bulb, the incandescent light. His work on monolayers, surface films a single atom or molecule thick, which have special two-dimensional qualities, led to a better understanding of biological substances like enzymes and proteins, and eventually led to the possibility of measuring the sizes of viruses and toxins. |
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| During Langmuir’s time, glass used for window-panes had irregular waves on the surface, which distorted the view. Langmuir’s work on monolayers led to the development of the smooth-surfaced glass we have today, made by placing a thin film of fluorine compound on the surface of the molten glass. |
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| For more information on Irving Langmuir go to the following link: http://www.ee.nmt.edu/~langmuir/langmuir.html |
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