Chemistry Facts

Was Popeye Wrong?

When you think of Popeye the Sailor what is the first thing that comes to your mind? It is probably spinach. Popeye used to get extraordinary strength as soon as he munched down a can of spinach. ... Continue reading

Luminol; Trick-or-Treat or Terrible Feat

What does trick-or-treating and crime scene investigation have in common? Hopefully, they don't have much in common, unless the trick-or-treater is wearing a safety glow stick. Glow sticks contain ... Continue reading

Knocking the NOx Out of Coal

Nitrogen is the most common part of the air we breathe. In fact, about 80% of the air is nitrogen. Normally, nitrogen atoms float around joined to each other like chemical couples. But when air is ... Continue reading

Air is mostly nitrogen molecules (green in the above diagram) and oxygen molecules (purple). When heated hot enough (around 3000 degrees F), the molecules break apart and oxygen atoms link with the nitrogen atoms to form NOx, an air pollutant.

Why Does Cement Set?

Concrete has been known for literally thousands of years. It is a testament to the enduring strength of this material that concrete structures from those long-ago times are still standing strong ... Continue reading

Image of microstucture predicted from a NIST-developed model of cement hydration.

More Chemistry Facts

Atmospheric Chemistry:

Chemical Composition:

Liquid Glass Is All Wet

Chemical Properties:

Chemical Reactions:

Elements and Compounds:

Food:

Medicine:

Take Two And Call Me In The Morning

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