Cobalt Acetate
Cobalt(II) Acetate Tetrahydrate, Cobaltous Acetate.
- CAS
- 6147-53-1
- EC
- 200-755-8
- Sectors
- Plastics & Polymers, Coatings, Adhesives, Sealants & Elastomers
Cobalt Acetate (CAS 6147-53-1) is the cobalt(II) salt of acetic acid, commonly supplied as the tetrahydrate, a reddish violet crystalline solid that acts as an oxidation catalyst in terephthalic acid production and as a paint drier in oil-based coatings. It is essential for the production of terephthalic acid (TPA), the primary feedstock for polyester resins.
In the coatings industry, it acts as a high-efficiency paint drier, accelerating the curing of oil-based systems. Its high purity ensures that finished paints achieve optimal durability and hardness without surface defects.
This magenta crystalline salt is also utilized in electroplating and ceramic pigmentation. Its excellent solubility in water and acetic acid makes it a versatile reagent for high-performance industrial catalysts.
Typical Properties
| Molecular formula | C2H4O2.1/2Co.2H2O |
|---|---|
| Molecular weight | 249.08 g/mol |
| Appearance | Reddish violet deliequecent crystals. |
| Form | Solid |
| Color | Red |
| Odor | Acetic acid odour |
| Melting point | 140 °C |
| Density | 1.7 g/cm³ |
| Water solubility | 380 g/L (20 °C) |
| pH | 7.2 (50g/l, H2O, 20°C) |
| GHS signal word | Danger · Irritant / harmful, Health hazard, Environmental hazard |
| HS code | 29152300 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Cobalt Acetate
Applications
- Polyester Catalyst: Critical for the industrial oxidation of p-xylene into TPA for the textile and plastic industries.
- Paint Drier: Promotes rapid cross-linking in varnishes, printing inks, and protective oil-based coatings.
- Surface Treatment: Used in anodizing processes and as an analytical reagent in laboratory environments.
Safety & Risks
Classified as a carcinogen and reprotoxic substance. May cause respiratory sensitization. Requires HEPA filtration, full PPE, and strict containment during handling.
Packaging
25 kg fiber drums with inner PE bags; 500 kg super sacks for large-scale industrial plants.