CAS No.: 138-24-9 UN No.: UN2811 pH: 4.5 (333 g/l, H2O, 20°C) Solubility: 333 g/l (20°C) Melting Point: 246 - 247°C Molar Mass: 171.66 g/mol Bulk Density: 540 kg/m3 Explosion Limit: 1 - 6 %(V)