Cobalt(II) nitrate hexahydrate for analysis EMSURE". CAS 10026-22-9, chemical formula Co(NO'"")'"" * 6 H'""O. Catalogue Number 102536 PAcking : 100 gr Description Cobalt(II) nitrate hexahydrate Product Information CAS number 10026-22-9 EC index number 027-009-00-2 EC number 233-402-1 Hill Formula CoN'""O'" * 6 H'""O Chemical formula Co(NO'"")'"" * 6 H'""O Molar Mass 291.04 g/mol HS Code 2834 29 20 Applications Application Cobalt(II) nitrate hexahydrate for analysis EMSURE". CAS 10026-22-9, chemical formula Co(NO'"")'"" * 6 H'""O. Physicochemical Information Density 1.87 g/cm3 (20 C) Melting Point 57 C pH value 4.0 (100 g/l, H'""O, 20 C) Bulk density 800 kg/m3 Solubility 2170 g/l