CAS: 7646-93-7 EC No: 231-594-1 MDL No: MFCD00011404 RTECS: TS7200000 UN No: UN2509; Haz Class: 8; Packing Group: II Solid Linear Formula: KHSO₄ MW: 136.17 Melting Point: 195-197° Density (g/mL): 2.32