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analytical chemistry

(Encyclopedia)analytical chemistry: see under chemistry. ...

Iliescu, Ion

(Encyclopedia)Iliescu, Ion, 1930–, Romanian political leader, president of Romania (1990–96, 2000–2004). A member of the Communist party from 1953, he held a series of party posts before he was elected a memb...

field-ion microscope

(Encyclopedia)field-ion microscope: see microscope. ...

Maurer, Ion Gheorghe

(Encyclopedia)Maurer, Ion Gheorghe yôn gāôrˈgā [key], 1902–2000, Romanian statesman. A lawyer, he defended Romanian Communists in the 1930s and later became (1945) a member of the central committee of the Co...

common-ion effect

(Encyclopedia)common-ion effect, decrease in solubility of an ionic salt, i.e., one that dissociates in solution into its ions, caused by the presence in solution of another solute that contains one of the same ion...

radiation chemistry

(Encyclopedia)radiation chemistry: see radiochemistry. ...

organic chemistry

(Encyclopedia)organic chemistry, branch of chemistry dealing with the compounds of carbon. While it is only the fourteenth most common element on earth, carbon forms by far the greatest number of different compound...

Ion, in Greek mythology

(Encyclopedia)Ion: see Creusa (1.)

formula, in chemistry

(Encyclopedia)formula, in chemistry, an expression showing the chemical composition of a compound. Formulas of compounds are used in writing the equations (see chemical equations) that represent chemical reactions....

surface chemistry

(Encyclopedia)surface chemistry, study of chemical reactions in which the reactants are first adsorbed onto a surface medium (see adsorption) that then acts as a catalyst for the reaction; after the reaction the pr...