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Ar, chemical symbol

(Encyclopedia)Ar, symbol for the element argon.

sulphur, chemical element

(Encyclopedia)sulphur: see sulfur.

Po, chemical symbol

(Encyclopedia)Po, symbol for the element polonium. ...

Cd, chemical symbol

(Encyclopedia)Cd, symbol for the element cadmium. ...

molecular modeling

(Encyclopedia)molecular modeling, the computer simulation, by various means, of chemical structures or processes. Special computer-graphics programs can display three-dimensional images of molecular structures and ...

anhydride

(Encyclopedia)anhydride ănhīˈdrīd, –drĭd [key] [Gr.,=without water], chemical compound formed by removing water, H2O, from another compound; the anhydride can also react with water to form the original compo...

Prussian blue

(Encyclopedia)Prussian blue, pigment widely used for laundry bluing, in dyeing compounds, and in the manufacture of inks and paints. Several varieties are known, one of which consists of the chemical compound ferri...

hydrogen chloride

(Encyclopedia)hydrogen chloride, chemical compound, HCl, a colorless, poisonous gas with an unpleasant, acrid odor. It is very soluble in water and readily soluble in alcohol and ether. It fumes in moist air. It is...

sodium

(Encyclopedia)sodium, a metallic chemical element; symbol Na [Lat. natrium]; at. no. 11; at. wt. 22.98977; m.p. 97.81℃; b.p. 892.9℃; sp. gr. 0.971 at 20℃; valence +1. Sodium is a soft, silver-white metal. Ext...

Tuzla

(Encyclopedia)Tuzla to͞ozˈlä [key], city (2013 pop. 80,570), in Bosnia and Herzegovina. Various fruits are grown in the vicinity, lignite and salt are mined, and some oil is extracted; there is a chemical plant....