The hydrochloric acid- a corrosive and strong mineral acid is available for commercial and laboratory use. When hydrogen chloride dissolves in water, hydrochloric acid is formulated. Once formulated, it is tested for its physical properties, that include density, molarity, pH, viscosity, specific heat, vapour pressure, boiling point and melting point. It is recommended to take protective measures, like wearing or using personal protective equipment upon using this chemical, as it creates toxic gases when mixed with some chemicals. It can have corrosive effect on the eyes, skin, and mucous membranes. Inhalation of this chemical can cause coughing, inflammation, chest pain, and other dangerous effects.