Product Information: CAS number 7782-63-0, EC index number 026-003-00-7, EC number 231-753-5, Grade ACS,ISO,Reag. Ph Eur, Hill Formula FeO₄S * 7H₂O, Chemical formula FeSO₄ * 7H₂O, Molar Mass 278.01 g/mol, Physicochemical Information: Density 1.898 g/cm3 (25 °C), Melting Point 64 °C Degajă apă de cristalizare, pH value 3.0 - 4.0 (50 g/l, H₂O, 25 °C), Vapor pressure 14.6 hPa (25 °C), Bulk density 600 kg/m3, Solubility 400 g/l, flacon 100 g.