EVERYDAY SCIENCE

Detailed explanation-1: -Christian Friedrich Schönbein, (born Oct. 18, 1799, Metzingen, Swabia-died Aug. 29, 1868, Sauersberg, near Baden-Baden), German chemist who discovered and named ozone (1840) and was the first to describe guncotton (nitrocellulose).

Detailed explanation-2: -Born on 18 October 1799 in Metzingen, Germany, Christian Friedrich Schönbein was a chemist best known for the discovery of ozone and the invention of guncotton.

Detailed explanation-3: -2 When was ozone discovered? Ozone is a naturally occurring substance which was first made in the laboratory in 1839 by German scientist Christian Friedrich Schönbein (1840a, 1840b). Schönbein was interest-ed in discovering the origin of the odour produced by certain chemical and electrical processes.

Detailed explanation-4: -Schönbein was born on this day in 1799. He accidentally discovered the powerful explosive nitrocellulose when he spilled sulfuric and nitric acids, and soaked them up with a cotton apron. When the apron dried, it burst into flame-he had created the highly flammable compound nitrocellulose.

Detailed explanation-5: -1863 The German scientist Schönbein first discovered the ability of hemoglobin to oxidize hydrogen peroxidemaking it foam. This resulted in first presumptive test for blood. 1864 Odelbrecht first advocated the use of photography for the identification of criminals and the documentation of evidence and crime scenes.