Hey as per your demand here I am providing you details of HCL as HCL is Hydrochloric acid

About HCL
Hydrochloric acid is a clear, colorless, highly pungent solution of hydrogen chloride (HCl) in water.
It is a highly corrosive, strong mineral acid with many industrial uses.
Hydrochloric acid is found naturally in gastric acid.

UN Number HCL
UN 1789

Uses
Hydrochloric acid is commonly used as an aqueous solution of hydrogen chloride in water, while hydrogen chloride (HCl) itself is a colorless, non-flammable and corrosive gas at room temperature.

Dangerous
Dangers of Hydrochloric Acid Exposure.
Hydrochloric acid, or muriatic acid is a very common acid that is formed when Hydrogen chloride when hydrogen chloride dissolves in water.
Both hydrogen chloride and hydrochloric acid are corrosive and may cause burns on contact.