There are different types of vinegar, but the most popular are:
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table or synthetic vinegar;
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natural vinegar;
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apple vinegar obtained from the fermentation of apples.
Making table vinegar
We often want to know how to dilute vinegar essence with water, in order to obtain a certain solution that is suitable for use. Vinegar essence is a highly concentrated solution of acetic acid with a concentration of 70-80%, while ordinary vinegar has an acid concentration of 3 to 15%. You can make ordinary vinegar from vinegar essence in the home, but you need to observe one rule: keep safe!
For the experiment, you will need:
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70% vinegar essence;
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a glass vessel;
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cold boiled water;
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a tablespoon;
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also use gloves while making the solution.
When there’s only essence in the home, but a 9% vinegar solution is required, this presents an impossible problem for cooks. But making a low-concentration solution at home is quite simple: even a person who is inexperienced in chemistry may achieve the required result.
To make a weak 3% solution, you will need 20 tablespoons of water per one tablespoon of essence. A 6% solution can be obtained as follows: per one tablespoon of essence, add 11 tablespoons of water.
For a 9% solution, use 7 tablespoons. By adding a lot of water to a small amount of vinegar, you will get a weak concentrate.
Why you should be careful when working with vinegar
Vinegar is an organic acid and as we know when this substance touches the skin, you may get a mild chemical burn, especially if you’re working with an essence. But sometimes skin layers are so badly injured that urgent medical attention is required. So you shouldn’t keep a bottle of acetic acid where small children can reach it: kids are always curious. In diluting the essence, we recommend that you wear gloves, and that the room is well aired.
If undiluted vinegar does get on your skin, then water with soda or a soap solution may help. If the burn is severe, call a doctor.
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When vinegar gets on to the mucous membrane, it causes a burn. So in this case you must rinse the mucous membrane and eyes with cold water, and if the condition is critical, immediately call a doctor. You should also call a doctor if you suffer food poisoning from vinegar.
An interesting experiment with vinegar
You can show this experiment to children, they’ll love the effect: a chicken egg turns rubbery!
You will need:
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vinegar essence;
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a raw chicken egg;
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a glass;
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and of course patience!
You can do this trick at home, but make sure that the child conducts the experiment with an adult present! Put the egg in the glass and cover it with vinegar. You can see little bubbles of gas forming on the eggshell immediately. This reaction takes place because of the vinegar dissolves the calcium that the eggshell is made of. Leave the egg in the vinegar for 24 hours. Then remove the egg with a spoon and place it on a plate, and rinse it with cold water. But you can get the result 10x times faster! Click here to find out how.
Source: https://en.congthucvatly.com
Category: Cook