Hey!!!
I've put an egg in a glass of vinegar overnight. I've noticed a sort of reddish brown deposit on the shells which peels off easily, but the shell is still here. What is the deposit and why is it of that colour? How much time will it take for the shell to disappear completely. Waiting for your answer!
2006-11-17 14:55:29 · 11 answers · asked by mauridhan 1 in Science & Mathematics ➔ Chemistry
It's an experiment I do with my students.
A raw egg in vinegar will lose its shell.
The carbonate in the shell reacts with the acid in the vinegar and dissolves it.
Usually, after one night or two, you lose all the shell and are left with a raw egg in it's membrane. You can sometime see the yolk through it!
The brown deposit though... no clue. Maybe something was in the container before, or the vinagar contained impurities...
2006-11-17 16:54:51 · answer #1 · answered by kihela 3 · 0⤊ 0⤋
vinegar eats the shell away and when it gets down to the egg membrane it is absorbed. You get a real neat smelly water balloon. As for the rust color I haven't a clue - perhaps it is the container you are using which is rusting? I tried this years ago but got suspended from school for just throwing the concoction an hitting a few people.
2006-11-17 15:39:08 · answer #2 · answered by Anonymous · 0⤊ 0⤋
hi!! we have already made that experiment in our chemistry laboratary.... the vinegar contains an acetic acid which causes the shell of an egg to peels off. and the changes in color of the shell is made by the reaction of acetic acid. i think the shell will disappear completely for about 2-3 weeks.
2006-11-17 18:50:33 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Its probably because overnight the vinegar got inside the egg causing the coloring. It will take a long time for hte shell to disapear
2006-11-17 14:58:13 · answer #4 · answered by Anonymous · 0⤊ 0⤋
The shell is about 95% calcium carbonate with a protein matrix to hold it together and seal it from the outside. The red/brown color is probably a reaction of the acetic acid with the protein. Also, did you use distilled white vinegar?
2006-11-17 23:30:14 · answer #5 · answered by Anonymous · 1⤊ 0⤋
actually the reddish part you see is the egg shell decomposing, i done this experiment before and realise after 3 days, the egg shell becomes soft and rubbery, when you throw it on the floor it actually bounces back up. I dont think the egg shell will ever disappear. it just sort of turns soft
2006-11-17 15:38:17 · answer #6 · answered by celeoj 2 · 0⤊ 0⤋
Apple Cider Vinegar eBook - http://AppleCiderVinegar.siopu.com/?KOj
2016-06-21 10:50:38 · answer #7 · answered by ? 3 · 0⤊ 0⤋
I guess it is oxidization. People do pickle eggs but they usually peel them first. The result is a rubbery sour thing that can only be ingested after at least 10 pints of lager.
2006-11-17 14:58:33 · answer #8 · answered by Anonymous · 0⤊ 0⤋
stable question, i've got many times puzzled who buys those pickeled pig knuckles and eggs on the tavern. you never see only one egg floating around in those huge glass jugs. that'd be disgusting. ask the bartender.
2016-10-15 16:51:06 · answer #9 · answered by ? 4 · 0⤊ 0⤋
not sure y it turned red...but it takes about 5-7days I did it for a science project awhile ago...
2006-11-17 17:39:25 · answer #10 · answered by Amber 1 · 0⤊ 0⤋