facebook
twitter
rss
account
search
search
 

Easter egg dyeing works best with vinegar

March 30, 2013 at 2:35 PM   |   Comments

WASHINGTON, March 30 (UPI) -- As millions of American families prepared to color eggs in an Easter tradition, a chemistry professor says dyes with vinegar work better than those without.

Diane Bunce, professor of chemistry at The Catholic University of America in Washington, said eggshells consist of calcium carbonate, the same chemical that makes up marble chips. However, eggshells differ from marble chips in that they are covered with a "protein cuticle."

The protein reacts with vinegar-based dyes in a way that allows dye to bond to the exterior of the egg.

Bunce, of the American Chemical Society, said most tap water is a bit acidic, so eggs dyed without vinegar will still pick up some color -- but it will have more of a pastel appearance.

© 2013 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.
Most Popular
1
Android phones to join iPhone in saying no to the police Android phones to join iPhone in saying no to the police
2
New dinosaur species with giant nose discovered in Utah New dinosaur species with giant nose discovered in Utah
3
Perth's first iPhone buyer immediately drops brand new phone on live TV Perth's first iPhone buyer immediately drops brand new phone on live TV
4
Only 5 billion years until Andromeda Galaxy eats Milky Way Only 5 billion years until Andromeda Galaxy eats Milky Way
5
Dogs are the favorite food of leopards in rural India Dogs are the favorite food of leopards in rural India
Trending News
Video
x
Feedback