Georg Wiegner
Encyclopedia
Georg Wiegner was a colloid
Colloid
A colloid is a substance microscopically dispersed evenly throughout another substance.A colloidal system consists of two separate phases: a dispersed phase and a continuous phase . A colloidal system may be solid, liquid, or gaseous.Many familiar substances are colloids, as shown in the chart below...

 chemist
Chemist
A chemist is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties such as density and acidity. Chemists carefully describe the properties they study in terms of quantities, with detail on the level of molecules and their component atoms...

 from Göttingen
Göttingen
Göttingen is a university town in Lower Saxony, Germany. It is the capital of the district of Göttingen. The Leine river runs through the town. In 2006 the population was 129,686.-General information:...

, Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

.

Georg Wiegner studied natural sciences at the University of Leipzig
University of Leipzig
The University of Leipzig , located in Leipzig in the Free State of Saxony, Germany, is one of the oldest universities in the world and the second-oldest university in Germany...

, and received a doctorate in 1906. He was an assistant to Wilhelm Fleischmann
Wilhelm Fleischmann
Wilhelm Fleischmann was a German agriculturist and chemist. He is known for his work on the chemistry of milk.-Biography:He received his education at Nuremberg, Würzburg, Erlangen and Munich...

 at the University of Göttingen from 1907. He was appointed professor of agricultural chemistry at the ETH Zurich
ETH Zurich
The Swiss Federal Institute of Technology Zurich or ETH Zürich is an engineering, science, technology, mathematics and management university in the City of Zurich, Switzerland....

 in 1913, where he remained until the year of his death, in 1933. He was responsible for seminal discoveries in coagulation and ion exchange
Ion exchange
Ion exchange is an exchange of ions between two electrolytes or between an electrolyte solution and a complex. In most cases the term is used to denote the processes of purification, separation, and decontamination of aqueous and other ion-containing solutions with solid polymeric or mineralic 'ion...

. His group at the ETH strongly influenced ecological pedology
Pedology (soil study)
Pedology is the study of soils in their natural environment. It is one of two main branches of soil science, the other being edaphology...

 in Switzerland. The group who worked with him included Hermann Gessner (1897 – 1981), Hans Jenny
Hans Jenny (pedologist)
Hans Jenny was a soil scientist and expert on pedology , particularly the processes of soil formation.- Overview :...

 (1899 – 1992) and Hans Pallmann (1903 – 1965). His group also influenced the work of Max Düggeli, who had a major influence on soil biology
Soil biology
Soil biology is the study of microbial and faunal activity and ecology in soil. These organisms include earthworms, nematodes, protozoa, fungi, bacteria and different arthropods...

in Switzerland.

Works

  • Boden und Bodenbildung Kolloidchemischer Betrachtung, 1918
  • Anleitung zum quantitativischen agrikulturchemischen Praktikum, 1919
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