Cola with salt can mainly play a refreshing role

Because Coca-Cola contains carbonic acid, and when the salt meets water, it will decompose and release hydrogen ions, and the carbonic acid and hydrogen ions will react chemically. , eventually producing carbon dioxide gas, which will make your tongue feel numb after entering the mouth, thus helping to refresh you.

Coke contains a large amount of carbon dioxide gas. After the carbon dioxide gas enters the human body, it will take away the body's heat through belching from the stomach, thereby achieving the purpose of heat dissipation. There is a large amount of carbon dioxide gas in Coke, which will slowly release carbon dioxide when there is no external interference; but when a small amount of finely divided solid powder-salt is added, Coke will generate many gasification centers, thereby accelerating the release of carbon dioxide. So Coke and salt will burst out.

Coke and salt are often used in bartending, because the chemical reaction between cola and salt will produce a large number of bubbles, and bartending can take advantage of this effect.