CAS No.: 149-45-1 pH: 5.0 (10 g/l, H2O, 20°C) Solubility: 1350 g/l (20°C) Melting Point: 300°C Molar Mass: 332.22 g/mol Bulk Density: 465 kg/m3 Hill Formula: C6H4Na2O8S2 * H2O