Product Information: CAS number 7783-85-9, EC number 233-151-8, Grade ISO, Hill Formula H₈FeN₂O₈S₂*6H₂O, Molar Mass 392.14 g/mol. Physicochemical Information: Density 1.86 g/cm3 (20 °C), Melting Point 39 - 41 °C (descompunere), pH value 3 - 5 (50 g/l, H₂O, 20 °C), Bulk density 900 kg/m3, Solubility 269 g/l, flacon 1 kg.