Product Description
Cobalt Sulfate Heptahydrate is a classic high-purity inorganic cobalt salt with stable physical and chemical traits. Combining superior solubility, catalytic performance and synthetic usability, it is an indispensable multifunctional raw material across chemical industry, new materials, breeding and biochemical testing fields.

Product Parameters
| Melting point | 98 °C |
| Boiling point | 735°C |
| Density | 2.03 g/mL at 25 °C(lit.) |
| Storage temp | Store at +5°C to +30°C. |
| Solubility | H2O: soluble |
| Form | Solid |
| Specific Gravity | 1.948 |
| Color | Red-brown |
| PH | 4 (100g/l, H2O, 20℃) |
| Water Solubility | 362 g/L (20 ºC) |
| Merck | 142,448 |
| Exposure limits | ACGIH: TWA 0.02 mg/m3 |
| Stability: | Stable. Non-flammable. Hygroscopic. Dehydrates at around 41 C and 71 C. |
| InChIKey | MEYVLGVRTYSQHI-UHFFFAOYSA-L |
| LogP | -1.031 (est) |
| CAS DataBase Reference | 10026-24-1(CAS DataBase Reference) |
| IARC | 2B (Vol. 86) 2006 |
| EPA Substance Registry System | Cobalt(2+) sulfate heptahydrate (10026-24-1) |
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 |
| RTECS | GG3200000 |
| TSCA | Yes |
| HazardClass | 9 |
| PackingGroup | III |
| HS Code | 28332930 |
| Toxicity | LD50 orally in Rabbit: 582 mg/kg |
Application Scenarios
Cobalt sulfate is used as a nutritional additive in animal feed, as cobalt is an essential component of vitamin B12 and helps support red blood cell formation and protein metabolism. In the electroplating industry, it is applied in cobalt plating solutions. It is also utilized in the production of cobalt ferromagnetic materials, paint drying agents, colored porcelain glazes, and as an additive for alkaline batteries. Additionally, it serves as a reagent and catalyst in chemical analysis, as well as a ceramic glaze material, glass colorant, and paint drier. In biological research, it is employed as a blood color reference and for quantitative colorimetric determination of serum bilirubin in liver function testing.
