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Posts tagged chemistry

November 29, 2011


Rubbing alcohol

Why Does Rubbing Alcohol Make A Good Antiseptic?

Oddly enough, a solution of 70% alcohol, that is, rubbing alcohol, is a more effective antiseptic than 100% alcohol. Another case of where more is not better.

November 25, 2011



Bacteria Have A Sweet Tooth For Ethanol

It seems that bacteria can have a sweet tooth for many types of fuel. Scientists have to remain vigilant to protect pipelines from erosion.

September 21, 2011


burnt paper

All Burned Up: Where Does Burnt Paper Go?

You took a stack of paper and burnt it. What happened to the papers when you lit them up?

July 14, 2011


colorfully wrapped soaps

The Surprising Chemical Structure Of Soap

Soap has been used for cleaning for many years, but it wasn't until modern chemists began to understand its structure that anyone knew how soap worked.

June 20, 2011



Why You Can’t Bleach Sheep

Why is it okay to bleach cotton cloth, but not wool?

May 31, 2011


dry ice in blue bucket

Why Is Dry Ice Dry?

If you've ever received a special shipment of meat or seafood at home, it probably arrived surrounded by blocks of dry ice. What is dry ice?

May 24, 2011


cleaning a bathroom

Why Soap And Hard Water Don’t Mix

Have you had to scrub your bathtub to get rid of soap scum? Learn why soap doesn't dissolve in your water.

May 23, 2011


soapy bubbles

Soap’s Magic Ingredient

Soap has a magic ingredient that helps clean clothes and dishes.

May 10, 2011


hamburgers on the grill

Why Meat Stays Red: Myoglobin And Nitrites

Check any package of bacon, hotdogs, or cold cuts and chances are you'll find nitrites listed among the ingredients.

May 9, 2011


gunpowder for cannons

Gunpowder Can Preserve Food

During the middle ages the invention of gunpowder had the unlikely result of providing a new way of preserving meat.

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