Write on the egg shell with vinegar, why does the egg white go to the egg white after cooking? 30

You can write on eggs with vinegar, and when the eggs are cooked, the words are printed on the egg whites. Raw eggshells contain calcium carbonate.

It reacts with acetic acid to produce soluble calcium acetate and releases carbon dioxide.

When the gas is released, the eggshell stained with vinegar slowly softens. None of them succeeded because the above reaction was not completed ... You can boil the eggshells first (use copper sulfate if you don't eat them.)

Pour and boil), then mix vinegar like ink, dip it with a pen and then write.

ps: Don't write with an old pen; Use a new pen and use a disposable cup to mix vinegar, and the egg soaked in copper sulfate cannot be eaten because it is a chemical, and the iron nail will rust after touching, and the copper sulfate cannot be eaten after cooking.

The main component of the eggshell is calcium carbonate, and vinegar can dissolve it, so that only a membrane between the egg white and the eggshell remains, because this is a semi-permeable membrane, the pigment in the vinegar can penetrate into the egg white.

The eggshell is somewhat thinner by the vinegar word, which will make the egg unevenly heated when heated, thus forming the word on the egg white.

Because acetic acid dissolves the eggshell, it can also dissolve a small amount of protein, and the protein has an amino acid group, it will be hydrolyzed under acidic conditions, showing blue or purple.

The raw eggshell contains calcium carbonate, which reacts with acetic acid to form soluble calcium acetate, and releases carbon dioxide gas, and the eggshell stained with vinegar slowly softens. You can first soak the eggshell with copper sulfate and boil, then mix the vinegar like ink, dip it with a pen and then write p Do not write with an old pen; With a new pen, eggs soaked in copper sulfate can not be eaten.

I'll tell you if it's penetration.

It is possible that there is too little vinegar used, or the vinegar at home has been left for a long time, and the acetic acid in it has volatilized.

The practice of writing on raw eggs is very good: write on the eggshell with acetic acid, and after the acetic acid is dry, there is no trace. But when the eggs are boiled again, the handwriting will miraculously be printed on the egg whites through the shell.

Note: The concentration of acetic acid should be ensured; Write a few more times, write again when you do it, write it when you do it, write it again when you do it; Wait for the acetic acid to penetrate into it for a while before boiling the eggs, and do not boil them immediately after writing. (Vinegar contains a small amount of acetic acid, and the main component of the egg shell is calcium carbonate, and the two react, and the calcium carbonate melts, so there will be words).

It's just a "theory" (to trick children into playing)! You know the truth! Remember: "facts" are the "witnesses" of truth!

It may be that vinegar is used, preferably acetic acid.

The process of the egg wall writing experiment is as follows:

1. Write on the eggshell with acetic acid, and after the acetic acid is dry, there is no trace.

2. When the eggs are cooked, the handwriting will be printed on the egg white through the eggshell.

3. Pay attention to ensure the concentration of acetic acid, write it several times, and wait for the acetic acid to penetrate into it for a period of time before boiling eggs.

The principle is that the main component of the eggshell is calcium carbonate, and when writing with acetic acid, acetic acid reacts with the calcium carbonate of the eggshell to produce calcium acetate.

Then acetic acid penetrates into the egg, and the egg white reacts, the egg white is a soluble protein, the protein is a chain polymer compound composed of amide bonds formed by the loss of water between multiple amino acid molecules, it is not very stable, under the action of heat, ultraviolet radiation or chemical reagents such as nitric acid, trichloroacetic acid, tannic acid, picric acid, heavy metal salts, urea, acetone, etc., protein coagulation occurs.

Denatured, infiltrated acetic acid, reacts with the egg white, leaving a special trace on the egg white, and the egg will have a clear and recognizable handwriting after the egg is cooked.

The eggshell's ability to withstand stress is amazing. Everyone knows that in the Chinese acrobatic masterpieces, there are not only shows of people stepping on eggs, but also wonderful performances of lifting two buckets of water and stepping on eggs. This is an excellent example of skillfully utilizing the ability of an eggshell to withstand pressure.

The egg is not only the largest single cell in the entire biological world, but also a masterpiece of nature that combines engineering, architecture, defense strategy, energy conservation and optimal use of space, and the most perfect combination of engineering, architecture, defense strategy, and the best combination of modern technology and engineering knowledge systems. It should be said that the unpretentious egg is a synthesis of concepts that humanity has only recognized and applied at a later stage in the process of civilization. <>

The egg makes use of the principle of the vault, and the eggshell has different resistance to tension and pressure due to the different functions required. Although the eggshell is an insulating material, it allows air and moisture to pass through. A number of state-of-the-art technologies are packed into a small space of just a few centimeters.

But I can't see any traces, some people say that they first use acetic acid to write on the shell of raw eggs, and then cook them. But what I see in the reader is that the hard-boiled eggs are ,.. firstWriting on eggshells? If so, raw eggs have the same effect as cooked eggs, and the reaction is acetic acid and eggshell.

The premise is that the eggs are boiled!! Write on the eggshell with acetic acid. After the acetic acid is dry, the eggs are boiled, and the words are absorbed through the egg whites and printed on the boiled egg whites, and there are no traces left on the eggshells. .

The principle of acetic acid writing on eggshell is to use acetic acid to react with calcium carbonate on the eggshell to produce calcium acetate; Such eggs can still be eaten after cooking...You can eat .It's better not to eat it, acetic acid and protein have a dehydration reaction.

Ordinary paper can, as long as the ink is colorless, most of the colorless organic substances have unique infrared spectral characteristics, ultraviolet spectral characteristics, with a wide spectrum or narrow spectrum of irradiation and a specific acceptance spectrum of sensors, can.

After the egg is cooked, immediately put it into cold water, the principle of thermal expansion and cold contraction, the eggshell and the egg are not so close, and it is easy to fall off when peeled. .Cool it down with cold water...I watched it on TV, and I gently knocked the egg before boiling it.

Write on the eggs with vinegar and cook them after they are driedHard-boiled egg whites. Egg whites are only available from raw eggs. It's romantic. You wouldn't be thinking that the best eggshell could leave no traces. Peel the eggs.

So when the eggs are taken out of the refrigerator, they will get wet when they see the temperature outside, and they don't like to write chalk for a long time. Writing on the blackboard with chalk can leave handwriting on the blackboard, indicating that there is movement between moleculesHello ..

The egg white does not flow out due to the atmospheric pressure. Because there is air inside the egg, a small amount of egg white flows out of the inside. You can make a small hole at each end of the eggshell and shake it...Start by knocking the eggs open a 5cm crack and place them on both sides.

After fresh eggs are cooked, the thin skin between the egg white and the egg shell is easy to peel off, because the density of the egg white increases and the volume decreases after cooking, so that there is a small amount of air left between the egg white and the skin, and it is difficult to peel off the egg is not fresh enough. .

I watched it on TV, before boiling, gently knock the egg to make a small crack, and then boil it and it is easy to peel, of course, provided that you don't break the egg... Dip it in cold water for a while, then peel it...

Writing on eggshells?

If so, raw eggs have the same effect as cooked eggs, and the reaction is acetic acid and calcium carbonate in the eggshell.

Is that dark vinegar to use?

Then you have to use hard-boiled eggs, write on the eggshell with vinegar, and the vinegar will react the eggshell, and the color will penetrate into the egg, and there will be words.

After writing on the raw egg, it is boiled in water, and the egg is automatically printed on the egg white after cooking.

Acetic acid is written on the outside of the raw egg with a brush, and after writing, the acetic acid is washed after a few minutes, or it is evaporated. Then boil the eggs with dilute copper sulfate After cooking, you can.

This indicates that the eggs are very fresh, and the freshly laid eggs will be like this for 1-3 days.

1. The egg white sticks to the eggshell, which is difficult to peel off, and the onion will peel off, commonly known as "skin protection", indicating that the egg is very fresh.

2. The egg whites of the new eggs are delicate and have not yet formed a gelatinous body, and the egg whites will be torn layer by layer. Aged eggs, on the other hand, have firmer egg whites and are difficult to come out of the layer. Therefore, new eggs are easier to stick, and old eggs are easy to peel off when they are well formed.

3. The phoenix clothes between the eggshell and the egg white of the new egg are thin and crispy, and they will break and break off when touched, which cannot play the role of isolating the protein and the eggshell. After a few days, the phoenix clothes will become thicker and more flexible, so there will be no sticking shells.

4. The air chamber of the freshly laid eggs is relatively small, and the moisture of the eggs is relatively large. Explained by the principle of thermal expansion and cold contraction, the space for the growth and contraction of new eggs is small, and the shell is tightly combined with phoenix clothes and egg whites, so it is easy to stick.

5. When the egg is not cooked, it will stick to the eggshell, and the egg white will be tightened after cooking, and the eggshell and egg white will naturally separate.

In addition, boiled eggs can be easily peeled off when they are boiled and put in a cool boiled boil.