The reaction equation between hydrochloric acid and aluminum hydroxide is: Al(OH)3+3HCl=AlCl3+3H2O. The phenomenon is that the white precipitate gradually disappears.

What is hydrochloric acid

Hydrochloric acid is an aqueous solution of hydrogen chloride (HCl). It is a monovalent inorganic strong acid and has a wide range of industrial uses. Hydrochloric acid is a colorless and transparent liquid with a strong pungent odor and high corrosiveness. Concentrated hydrochloric acid (mass fraction of about 37%) is extremely volatile, so when a container containing concentrated hydrochloric acid is opened, hydrogen chloride gas will evaporate and combine with water vapor in the air to produce small droplets of hydrochloric acid, causing acid mist to appear above the bottle mouth.

What is aluminum hydroxide

The chemical formula of aluminum hydroxide is Al(OH)3, which is the hydroxide of aluminum. Aluminum hydroxide can react with acids to form salt and water and can react with strong bases to form salt and water, so it is also an amphoteric hydroxide. Because it also has a certain acidity, it can also be called aluminic acid.