Product Information CAS number 10102-25-7 EC number 233-820-4 Grade ACS,Reag. Ph Eur Hill Formula Li₂O₄S * H₂O Chemical formula Li₂SO₄ * H₂O Molar Mass 127.96 g/mol Physicochemical Information Density 2.05 g/cm3 (20 °C) Melting Point 120 °C pH value 4.5 - 6.0 (50 g/l, H₂O, 20 °C) Bulk density 940 kg/m3 Solubility 340 g/l flacon 250 g