What is alum?
In fact, alum is a type of salt with crystals of irregular size, colorless or slightly opaque white.
They are also known as alum aluminum, have a sour taste, slightly soluble in cold water, but in hot water, they dissolve a lot.
What is alum?
What is the chemical formula of alum?
What is the formula of alum? They are the double sulfate salts of potassium and aluminum KAI(SO4)2, found in crystalline form in the presence of 24 water molecules, with the chemical formula: KAl(SO4)2-12H2O or K2SO4.Al2(SO4) 3.24H2O.
What is the effect of alum? Important roles in life
Not too strange, the use of alum is well known to many people and is common in this life. As follows:
3.1 The effect of alum to help clean food
Alum has a prominent use to help wash foods (fish, shrimp, eel, pork intestines...). This is a common way that most housewives apply to help clean food to cook quickly.
The effect of alum to help wash food
3.2 Uses of alum to help treat body odor
You may not know, alum also works to treat body odor very well because the aluminum sulfate component in alum will help eliminate the smell of sweat secreted from the body. The simple way is as follows:
- Roast alum, then pulverize them, grind them finely and put them in an airtight container.
- After bathing and drying, you use the powder on and then rub it on the body with bad smell.
3.3 Clean iron pans and aluminum pans effectively
Mix the mixture of alum and water together, then pour it into the pan and boil it for about 15-20 minutes. This is a way to quickly remove rust on the pan after a long time of use.
3.4 Uses of alum to treat foot water
Not only that, alum is also as a medicine to fight itching, antiseptic, and drying to treat foot water very well. Here's how to do it:
- Use a small alum to soak in water, wait until they dissolve, then put your feet in to soak.
- After soaking your feet, you need to dry them and keep them dry so that the water on your feet will heal faster.
3.4 Application of alum to increase the whiteness and crispiness of food
You just need to soak the food with a sufficient amount in a mixture of alum and water, which will help increase the whiteness and crispiness of the food very well.
Application of alum to increase the whiteness and crispiness of food
4. A simple way to make alum, anyone can do it
4.1 How to prepare alum/alumina?
They are prepared from the main materials such as: clay (main ingredient contains AL2O3), sulfuric acid and K2SO4.
4.2 How to make alum to treat body odor
Proceed to pound 50gr of alum and put it into a furnace (it is recommended to bake it with an earthen pot).
After that, you heat the alum to drain all the water, the alum becomes porous and expands 2-3 times.
After a clean bath, rub alum on your armpits and legs (the areas with bad odors), then gently massage for 8-10 minutes. It can be done 3-4 times a week to treat body odor most effectively.
If you have not used them all, store them in a glass jar and use them gradually.
5. Can alum be eaten? Is alum toxic?
Currently, there are many opinions that alum should not be used in cooking because it is not good for health. However, this is not true, alum is not toxic when used correctly and according to a certain formula.
Note, do not use too much alum as well as abuse alum to increase the crunchiness and toughness of food, use it with a certain dose.
