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Absorption of high energy radiation by a substance and subsequent emission of visible light.

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    People use chemicals every day for a wide array of purposes, which can include work and house hold duties. Many of us fail to realize that we are actually handling potentially deadly chemicals when we simply clean the bathroom or wash the car. This brings to mind the reason why chemical safety is...

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    The scanning tunneling microscope (STM) invented by Heinrich Rohrer and Gerd Binnig in the 1980s still manages to do a great job today and competes with more advanced microscope types. The scanning tunneling microscope is used for studying the surface atoms that are found on various materials. The...

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Most Popular

Downs Cell

Electrolytic cell for the commercial electrolysis of molten sodium chloride. For further information see Electrochemistry or Fuel Cells.

Strong Field Ligand

Ligand that exerts a strong crystal or ligand electrical field and generally forms low spin complexes with metal ions when possible.

Solvation

The process by which solvent molecules surround and interact with solute ions or molecules.

Chemical Hygiene Officer (CHO)

A person or employee who is qualified by training or experience to provide technical guidance in the development and implementations of the provisions of a Chemical Hygiene Plan (CHP)

Raoult's Law

The vapor pressure of a solvent in an ideal solution decreases as its mole fraction decreases.

Alkynes

Unsaturated hydrocarbons that contain one or more carbon-carbon triple bonds.

Temperature

A measure of the intensity of heat, i.e. the hotness or coldness of a sample. or object.

Semipermable Membrane

A thin partition between two solutions through which certain molecules can pass but others cannot.

Joule

A unit of energy in the SI system. One joule is 1 kg. m2/s2 which is also 0.2390 calorie.

Catalyst

A substance that speeds up a chemical reaction without being consumed itself in the reaction.
A substance that alters (usually increases) the rate at which a reaction occurs.