What is the function of alum

Alum has been used in many occasions in recent years. Alum was first used for water purification. First add stones, charcoal, and then add alum to filter the water to make it drinkable. Alum also has a puffing effect, especially in fried dough sticks or puffed foods. Now the fried dough sticks or fried cakes sold to everyone every morning contain puffed foods such as alum.

What are the effects and functions of alum

1. Alum as a water purifier

Alum can be used as a water purifier. After alum is dissolved in water, the positive charge of aluminum colloid will meet with the negatively charged mud and sand particles to produce a neutralization reaction. The colloid particles that lose their charge will sink to the bottom of the water, which can achieve a very good effect of purifying the water source, allowing everyone to drink clear, clean and transparent water. Drinking more healthy water on a daily basis is of great benefit to your health.

2. Alum as a fire extinguishing agent

Alum can also be used as a fire extinguishing agent. Adding an appropriate amount of alum and baking soda solution into the barrel of a fire extinguisher and allowing the two to react fully can produce a large amount of carbon dioxide, helping everyone to extinguish the fire in time. Fire extinguishers made of alum and baking soda solution are widely used in various fields of daily life. The production method is simple and safe and harmless.

3. Alum as a bulking agent

Alum is also widely used as a leavening agent in various fried foods that we eat daily. Maybe many of my friends like to eat fried dough sticks in the morning. Adding alum into the fried dough sticks can make them more puffy and more delicious. Moreover, many puffed foods are also rich in alum, so it is recommended that you try to eat less puffed foods.

4. Alum as Medicine

Alum can also be used as a traditional Chinese medicine to kill roundworms in children's stomachs. It can also help everyone achieve a good effect of clearing heat and detoxifying. It can also achieve a certain healing effect in alleviating the problems of excessive phlegm and sore throat that many friends encounter. It is also very effective in relieving gastric ulcers and duodenal ulcers that many elderly people suffer from.

I believe everyone now has a clearer understanding of the effects and functions of alum. Alum is also widely used in papermaking, waterproofing agents, paints and many other aspects, bringing many benefits to everyone's life. However, everyone should try to eat less fried dough sticks and puffed foods that have added alum. On the one hand, it may cause obesity, and on the other hand, it may endanger your health.