CAS: 10048-95-0 EC No: 231-902-4 MDL No: MFCD00149179 RTECS: CG0900000 UN No: UN1685; Haz Class: 6.1; Packing Group: II Crystalline Linear Formula: Na₂HAsO₄·7H₂O MW: 312.01 Melting Point: 180° Density (g/mL): 1.88