Encyclopedia for analytics, chemistry, lab technology, chemical engineering, process engineering

My watch list

ENCYCLOPEDIA

Search Encyclopedia

chemeurope.com's Encyclopedia of Chemistry provides articles for 64,557 entries from chemistry, pharmaceutics and material sciences as well as related scientific disciplines.

Definitions

History of saffron fresco from the excavation of Akrotiri on the Aegean island of Santorini . The history of saffron in human cultivation and use reaches back more than 3,000 years. and spans many cultures, continents, and civilizations. Saffron , a spice derived from the dried stigmas of t more

Aldol reaction

Aldol reaction The aldol reaction is an important carbon-carbon bond formation reaction in organic chemistry . In its usual form, it involves the nucleophilic addition of a ketone enolate to an aldehyde to form a β-hydroxy ketone, or "aldol" (aldehyde + alcohol), a structural unit foun more

Antioxidant

Antioxidant glutathione . The yellow sphere is the redox-active sulfur atom that provides antioxidant activity, while the red, blue, white, and dark grey spheres represent oxygen, nitrogen, hydrogen, and carbon atoms, respectively. An antioxidant is a molecule capable of slowing or preventing th more

Speed of light

Speed of light :"Lightspeed" redirects here. For other uses, see Lightspeed (disambiguation) . :For other uses of "speed of light", see speed of light (disambiguation) The speed of light in a vacuum is an important physical constant denoted by the letter c for constant or the Latin word celerit more

Joseph Priestley

Joseph Priestley (1794) Joseph Priestley (13 March 1733 (old style ) – February 6 , 1804 ) was an 18th-century British theologian , Dissenting clergyman , natural philosopher , educator, and political theorist who published over 150 works. He is usually credited with the discovery of oxygen more

Chemical elements