Hydrochloric acid, 0.5 mol/l - 0.5 N volumetric solution, Molar mass (M) 36,46 g/mol, Density (D) 1,007 g/cm³, Boiling point (bp) 100 °C, CAS No. [7647-01-0], UN-Nr. 1789, EG-Nr. 231-595-7, Empirical formula HCl