CAS Number: 7722-64-7 UN Number: UN1490 Solubility: 64 g/l (20°C) Melting Point: >240°C (decomposition) Molar Mass: 158.03 g/mol Bulk Density: 1300 - 1600 kg/m3 Vapor Pressure: Density: 2.70 g/cm3 (20°C) pH: 7 - 9 (20 g/l, H2O, 20°C)