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contribution about richard zsigmondy​

Sagot :

Thecoolgirl12345

Answer:

Richard Zsigmondy, (born April 1, 1865, Vienna, Austrian Empire—died Sept. 23, 1929, Göttingen, Ger.), Austrian chemist who received the Nobel Prize for Chemistry in 1925 for research on colloids, which consist of submicroscopic particles dispersed throughout another substance.

Explanation:

Richard Adolf Zsigmondy

The Nobel Prize in Chemistry 1925

Born: 1 April 1865, Vienna, Austrian Empire (now Austria)

Died: 24 September 1929, Göttingen, Germany

Affiliation at the time of the award: Goettingen University, Göttingen, Germany

Prize motivation: "for his demonstration of the heterogenous nature of colloid solutions and for the methods he used, which have since become fundamental in modern colloid chemistry."

Richard Zsigmondy received his Nobel Prize one year later, in 1926. In chemistry very small particles that are finely dispersed in another substance are called colloids. Colloid particles are so small that they cannot be observed in a regular microscope. In 1902 Richard Zsigmondy introduced an idea that led to the ultramicroscope, which makes it possible to observe very small particles by illuminating the preparation being studied in a direction that is perpendicular to the viewing angle. Richard Zsigmondy used the ultramicroscope to show the heterogeneous structure of colloids, which contain particles that are small but vary in size.

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