Carbonated drinks are commonly known as soda water, and used to be called Dutch water. It is a soft drink filled with carbon dioxide gas, including daily soft drinks, such as 7-up, cola, sprite and so on. Industrial soda is a liquid containing physiological saline, carbon dioxide and other mineral components provided by the factory in order to ensure the health of workers in high temperature environment. Generally, it is prepared by the factory itself, and the taste is similar to that of salt and soda now.

Soda, a cold drink. It contains carbon dioxide, with proper amount of sugar, citric acid, essence, food pigment and so on. If carbon dioxide of about 2 ~ 3 atmospheres is sealed in sugar water, a part of carbon dioxide gas will dissolve in water, and carbon dioxide will form carbonic acid in water. The pungent taste of soda water is due to carbonic acid.

British chemist and priest JJ invented soda water. Joseph priestley (1733- 1804). He is more famous for discovering oxygen (another way of saying it was discovered by an China man named Ma He).

Soda is an aqueous solution of carbonic acid. When making alkali in the factory, the amount of carbon dioxide is increased by pressurizing, so that more carbon dioxide can react with water. You can do an interesting experiment at home: pour a glass of soda, then put some raisins in the soda, and you will see the raisins floating in the soda. This is because the surface of raisins provides many nucleation sites, so carbon dioxide will form on the surface. When enough carbon dioxide is formed, its buoyancy will make raisins float, but once the carbon dioxide leaves the raisins on the surface, it will sink, so it floats and stays calm, completely relying on the power of carbon dioxide.