Ammonium hydrogen fluoride, min. 98 %, extra pure, Molar mass (M) 57,04 g/mol, Density (D) 1,5 g/cm³, Boiling point (bp) 239 to 240 °C, CAS No. [1341-49-7], UN-Nr. 1727, EG-Nr. 215-676-4, Empirical formula (NH4)HF2