Cobalt Sulfate CAS#10124-43-3
Multiple Hydrated Forms for Flexible Applications – Available as anhydrous, monohydrate, and heptahydrate forms, allowing selection of the most suitable grade for different processing and formulation needs.
Excellent Thermal Stability – Anhydrous cobalt sulfate has a high melting point above 700 °C, making it suitable for high-temperature and metallurgical applications.
Controlled Hydration Behavior – Stepwise dehydration at specific temperatures (41 °C and 74 °C) enables precise control of crystal form and moisture content during processing and storage.
Good Water Solubility for Efficient Use – Anhydrous and heptahydrate forms dissolve readily in water, ensuring easy preparation of solutions for electroplating, catalysts, pigments, and chemical manufacturing.
Product Description of Cobalt Sulfate (CAS No. 10124-43-3)
Cobalt Sulfate is available in several hydrated forms with distinct physical characteristics. The anhydrous salt appears as purple orthorhombic crystals with a density of 3.71 g/cm³ and melts at temperatures above 700 °C. The monohydrate form is a crimson orthorhombic crystal with a density of 3.08 g/cm³, while the heptahydrate occurs as crimson, monoclinic prismatic crystals with a density of 2.03 g/cm³.
The heptahydrate gradually loses water to form the hexahydrate at around 41 °C and further converts to the monohydrate at approximately 74 °C. Both the anhydrous salt and the heptahydrate are readily soluble in water, whereas the monohydrate dissolves slowly in boiling water, making Cobalt Sulfate suitable for various aqueous and high-temperature processing applications.
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 | 132,473 |
| 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) |
Product Application of Cobalt Sulfate (CAS No. 10124-43-3)
Cobalt Sulfate is extensively used in many industrial sectors. It is an important raw material in chemical manufacturing for producing a variety of cobalt compounds. In the battery industry, it is a key component of cathode materials for lithium-ion batteries, contributing to improved energy capacity and stable performance.
In agriculture, Cobalt Sulfate is applied as a trace element fertilizer to provide essential cobalt for crop growth and development. It is also widely used in electroplating for metal surface finishing and in catalyst production, where it serves as an active component to enhance catalytic activity and reaction efficiency.
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