Ammonia solution 25 %, min. 25 %, extra pure, Molar mass (M) 17,03 + aq g/mol, Density (D) 0,91 g/cm³, Boiling point (bp) 38 °C, CAS No. [1336-21-6], UN-Nr. 2672, EG-Nr. 215-647-6, Empirical formula NH3 + H2O