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

what is hydrochloric acid

Hydrochloric acid is an aqueous solution of hydrogen chloride (HCl), which belongs to the unary inorganic strong acid and has a wide range of industrial uses. The properties of hydrochloric acid are colorless transparent liquids with a strong pungent odor and high corrosiveness. Concentrated hydrochloric acid (mass fraction of about 37%) is extremely volatile, so the container containing concentrated hydrochloric acid will volatilize after opening, and combine with the water vapor in the air to produce small droplets of hydrochloric acid, so that acid mist appears 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 salts and water and strong alkalis to form salts and water, so it is also an amphoteric hydroxide. Because it also has a certain acidity, it can also be called aluminic acid.