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The Chemical Glossary currently has 651 chemical entries. You may search the Chemical Glossary by entering the keyword in the search box or by browsing the entire chemical glossary by letter in alphabetical order.

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Contact Process

Industrial process by which sulfur trioxide and sulfuric acid are produced from sulfur dioxide.

Atomic Radius

Radius of an atom.

Free Radical

A highly reactive chemical species carrying no charge and having a single unpaired electron in an orbital.

ytterbium

A rare metallic element found in gadolinite and forming compounds resembling those of yttrium. Symbol: Yb, at. wt.: 173.04, at. no.: 70, sp. gr.: 6.96. Cf."rare-earth element."

 

Heat Capacity

The amount of heat required to raise the temperature of a body (of any mass) one degree Celsius.

Effective Collisons

Collision between molecules resulting in a reaction, one in which the molecules collide with proper relative orientations and sufficient energy to react.

 

Dissociation Constant

Equilibrium constant that applies to the dissociation of a comples ion into a simple ion and coordinating species (ligands).

Breeder Reactor

A nuclear reactor that produces more fissionable nuclear fuel than it consumes.

Salicylate

A salt or ester of salicylic acid.

Solubility Product Constant

Equilibrium constant that applies to the dissolution of a slightly soluble compound.