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Chemistry Facts

When Chlorine Met Sodium...

Sodium is a required element in human physiology. The eleventh element in the periodic table, sodium is a soft, silvery white metal that can be easily cut through with a paring knife. It is highly ... Continue reading

A crystal of sodium chloride.

Warmer Hands (And Toes) Through Chemistry

A popular item for skiers and snowboarders, hunters and people who have to work outside in cold areas, and found in many outdoors shops, are disposable hand warmers. If you haven't used them before, ... Continue reading

Why Doesn't Glue Get Hard In The Plastic Bottle?

Glue, in its many different forms, is a very simple-to-apply sort of thing that represents a surprisingly complex amount of chemistry and physics. On the face of it, what could be simpler? Put on the ... Continue reading

How Sublime

Show of hands. How many of you can't resist playing with dry ice? Dry ice is carbon dioxide frozen to -109.3 degrees F (-78.5 C). Throw a piece in water and it bubbles and boils. Expose a piece to air ... Continue reading

Sublimation of Comet's Tail