Fresenius, Karl

Fahrenheit, Daniel, 104 Faraday, Michael, 73,176, 205, 294 Fermi, Enrico, 46 Firestone, Harvey Samuel, 305 Fischer, Ernest Gottfried, 32 Ford, Henry, 305 Frankland, Edward, 73, 198 Franklin, Benjamin, 23, 172 Fresenius, Karl, 296 Fuller, F. Buckminster, 96... 

Fresenius, Karl Remigus (1818-1897). A German chemist noted for his work on analytical chemistry. Designed a desiccator with bell-shaped cover and a nitrogen bulb in the shape of a conical flask with side-tubes having two bulbs near the base Ref Hackh s Diet (1944), p 357-R... 

S. Griinke and G. Wiinsch, Kinetics and Stoichiometry in the Karl Fischer Solution, Fresenius J. Anal. Chem. 2000,368. 139. 

K. Schmitt, H.-D. Isengard, Method for avoiding the interference of formamide with the Karl Fischer titration, Fresenius J. Anal. Chem., 357 (1997), 806-811. 

Analytical chemistry began in the late eighteenth century with the work of French chemist Antoine-Laurent Lavoisier and others the discipline was further developed in the nineteenth century by Carl Fresenius and Karl Friedrich Mohr. As a pharmacist s apprentice in Frankfurt, Germany, Fresenius developed an extensive qualitative analysis scheme that, when it was later published, served as the first textbook of analytical chemistry. He built a laboratory at his house that opened in 1848. Here he trained students in gravimetric techniques that he had developed. Mohr developed laboratory devices such as the pinch clamp burette and the volumetric pipette. He also devised a colorimetric endpoint for silver titrations. It was his 1855 book on titrimetry, Lehrhuch der Chemisch-Analytischen Titromethode, that generated widespread interest in the technique. 

Analytical chemistry gained further impetus from the work of Karl Remegius Fresenius, the German chemist who at the age of 30 asked his prosperous attorney father for funds to set a up laboratory. In this laboratory he did analyses for government agencies, police depart-... 

Water analysis. Bibliography p. Includes index. 1. Water-Analysis. 2. Water chemistry. 3. Water quality-Evaluation. I. Fresenius, Wilhelm, 1913-. II. Quentin, K.E. (Karl Ernst) III. Schneider, W. (Wilhelm) TD380.W327 1988 628.1 61 87-28385 ISBN-13 978-3-642-72612-5 (U.S.)... 

Joseph Gay-Lussac (1778-1850) seems to have been the first chemist to give the status of exact quantitative analysis method to titrimetry after his work in 1824 devoted to the determination of active chlorine, potassium hydroxide, and silver ion. Other chemists in this field must also be mentioned. We shall be content here with recalling Karl Friedrich Mohr (1800-1879) and Carl Remigius Fresenius (1818-1897). 

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