Cobalt Sulfate CAS#10124-43-3
Multiple Hydration States：Available in anhydrous, monohydrate, and heptahydrate forms, offering flexibility for diverse industrial applications.
Thermal Responsiveness：Undergoes controlled dehydration at specific temperatures (41°C and 74°C), allowing tailored phase transitions for processing needs.
Good Water Solubility：Both anhydrous and heptahydrate forms are water-soluble, supporting ease of use in aqueous formulations.
Distinct Crystal Structures：Exhibits unique crystal types—orthogonal and monoclinic—providing material options with varied physical properties.
The anhydrous salt of cobalt(II) sulfate is a purple orthogonal crystal with a density of 3.71 g/cm³ and melts above 700°C. The monohydrate is crimson, with a density of 3.08 g/cm³, and dissolves slowly in boiling water. The heptahydrate appears as crimson monoclinic prismatic crystals with a density of 2.03 g/cm³. It dehydrates to hexahydrate at 41°C and converts to monohydrate at 74°C. Both the anhydrous salt and heptahydrate are soluble in water.
Parameters
Melting point | decomposes at 1140℃ [JAN85] |
density | d425 3.71 |
vapor pressure | 0Pa at 20℃ |
refractive index | 1.639 |
solubility | H2O: soluble |
form | red orthorhombic crystals |
color | red orthorhombic crystals, crystalline |
Odor | Odorless |
Water Solubility | dissolves slowly in boiling H2O [MER06]; g/100g solution H2O: 19.7 ± 0.1 (0°C), 27.2 ± 0.1 (25°C), 27.8 (100°C); solid phase, CoSO4 · 7H2O (0°C, 25°C), CoSO4 ·H2O (100°C) [KRU93] |
Merck | 13,2473 |
InChI | InChI=1S/Co.H2O4S.H2O/c;1-5(2,3)4;/h;(H2,1,2,3,4);1H2/q+2;;/p-2 |
InChIKey | BGORGFZEVHFAQU-UHFFFAOYSA-L |
SMILES | S([O-])([O-])(=O)=O.O.[Co+2] |
LogP | -1.031 (est) |
CAS DataBase Reference | 10124-43-3(CAS DataBase Reference) |
NIST Chemistry Reference | Cobalt sulfate(10124-43-3) |
EPA Substance Registry System | Cobalt(II) sulfate (10124-43-3) |
Safety Information
Hazard Codes | T,N |
Risk Statements | 49-42/43-51/53-50/53-22-68-60 |
Safety Statements | 53-23-36/37-45-61-60-22 |
RIDADR | UN 3082 9/PG 3 |
WGK Germany | 2 |
Hazardous Substances Data | 10124-43-3(Hazardous Substances Data) |
Cobalt sulfate (CAS#10124-43-3) is extensively applied across various industries. In chemical manufacturing, it serves as a key precursor for producing other cobalt-based compounds. Within the battery sector, it is used in the production of lithium-ion battery cathode materials to improve performance. In agriculture, it functions as a trace element fertilizer to provide essential cobalt nutrients for plant growth. Additionally, it is utilized in electroplating for metal surface treatment and acts as an active ingredient in catalyst formulations to boost chemical reaction efficiency.
