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ethylene

(Encyclopedia)ethylene ĕthˈēn [key], H2C=CH2, a gaseous unsaturated hydrocarbon. It is the simplest alkene. Ethylene is colorless, has a faint odor, and has a slightly sweet taste; it melts at −169.4℃ and bo...

Ludwigshafen am Rhein

(Encyclopedia)Ludwigshafen am Rhein lo͞otˌvĭkhs-häˈfən äm rīn [key] or Ludwigshafen, city (1994 pop. 168,130), Rhineland Palatinate, W Germany, a port on the left bank of the Rhine River. It is connected by...

Fukui, Kenichi

(Encyclopedia)Fukui, Kenichi kĕnˈēchē fo͝oko͞oˈē, fo͝okˈo͞o-ē [key], 1918–98, Japanese chemist, b. Nara, Japan, Ph.D. Kyoto Univ., 1948. As a professor at Kyoto Univ., Fukui developed the theory that ...

silver nitrate

(Encyclopedia)silver nitrate nīˈtrāt [key], chemical compound, AgNO3, a colorless crystalline material that is very soluble in water. The most important compound of silver, it is used in the preparation of silve...

Porter, George, Baron Porter of Luddenham

(Encyclopedia)Porter, George, Baron Porter of Luddenham, 1920–2002, British chemist, b. Stainforth, England, grad. Leeds Univ., Ph.D. Cambridge, 1949. After serving as a radar officer during World War II, he did ...

Boyle, Robert

(Encyclopedia)Boyle, Robert, 1627–91, Anglo-Irish physicist and chemist. The seventh son of the 1st earl of Cork, he was educated at Eton and on the Continent and conducted most of his researches at his own labor...

Scheele, Karl Wilhelm

(Encyclopedia)Scheele, Karl Wilhelm kärl vĭlˈhĕlm shāˈlə [key], 1742–86, Swedish chemist, b. Stralsund. He is known as the discoverer of many chemical substances. He was a pharmacist in Stockholm, in Uppsa...

reaction rate

(Encyclopedia)reaction rate: see chemical reaction. ...

Wayland

(Encyclopedia)Wayland, town (1990 pop. 11,874), Middlesex co., E Mass., W of Boston; settled c.1638, inc. 1835. Electronic and chemical research is carried on there. ...

Tm

(Encyclopedia)Tm, chemical symbol for the element thulium. ...