نیکل II سولفات هگزاهیدرات
| Formula | NiO4S*6H2O |
| Chemical formula | NiSO4*6H2O |
| Density | 2.07 g/cm3 (20°C) |
| Molar mass | 262.86 g/mol |
| Bulk density | ~1000 kg/m3 |
| CAS number | 10101-97-0 |
| HS Code | 28332400 |
| EC number | 232-104-9 |
| Storage | Without limitation |
| SDS | available |
| R phrase | R 22-40-42/43-50/53 |
| S phrase | S 22-36/37-60-61 |
| Odour | odourless |
| Form | crystal |
| Color | green |
| p H | 4.3 – 4.7(100g/l ) |
| Solubility in water | 650g/l (20°C) |
| Thermal decomposition | ~800 °C |
| Assay | ≥ | 98 | % |
| Description | Conforms | ||
| Identification | Conforms | ||
| p H | 4.3 – 4.7 | ||
| Sulphate | ≤ | 0.003 | % |
| Iron | ≤ | 0.01 | % |
| Copper | ≤ | 0.2 | % |
| Lead | ≤ | 0.001 | % |
| Substances not precipited | ≤ | 0.5 | % |
| by ammonium sulfide |
Nickel(II) sulfate hexahydrate is a green crystalline inorganic compound commonly used in electroplating, battery production, and as a source of nickel in chemical synthesis.
🏭⚗️ Production
It is typically produced by dissolving nickel metal or nickel oxide in sulfuric acid, followed by crystallization to obtain the hexahydrate form.
🔬 Properties
The chemical formula is NiSO₄·6H₂O with a molar mass of approximately 262.85 g/mol. It appears as blue-green monoclinic crystals, is soluble in water and slightly soluble in alcohol, and forms acidic solutions. It is stable under normal storage but loses water upon heating.
🧪 Applications
Nickel(II) sulfate hexahydrate is widely used in nickel electroplating baths, in the manufacture of nickel-containing batteries (especially Ni-Cd and Ni-MH), as a catalyst in chemical reactions, and as a laboratory reagent in coordination chemistry.
⚠️ Safety
This compound is toxic and classified as a carcinogen. It can cause skin sensitization, respiratory irritation, and long-term health effects upon prolonged exposure. Protective gloves, eye protection, and proper ventilation are essential during handling. It should be stored in a cool, dry place away from incompatible substances.
