Nickel Sulfate CAS：7786-81-4
Superior Water Solubility：Nickel sulfate exhibits outstanding water solubility, allowing for seamless incorporation into a wide range of industrial and chemical processes without complex pre-treatment steps.
Core Component for Electroplating：It serves as a foundational material in electroplating, producing highly durable, corrosion-resistant nickel coatings that meet the stringent requirements of high-performance plating applications.
Broad Industrial Versatility：Beyond electroplating, it acts as a key ingredient in industrial catalysts, textile dye mordants, and metal blackening formulations, supporting diverse manufacturing workflows.
Specialized Medical Diagnostic Application：The compound is also utilized in nickel patch testing, a standard procedure for accurately identifying and diagnosing allergic contact dermatitis triggered by nickel exposure
Product Details
Nickel sulfate appears as odorless, blue to blue-green crystalline solids, and is a highly water-soluble nickel salt. Special care is required when handling this product, as it reacts dangerously with strong acids, posing safety risks.
In industrial applications, it is an essential raw material for electroplating, where it helps form long-lasting, corrosion-resistant metal coatings. Beyond plating, it serves as a key precursor for chemical synthesis catalysts, a reliable mordant in textile dyeing and printing, and a common agent in metal surface blackening treatments for zinc and brass. It also has specialized uses in nickel patch testing for allergy diagnosis and jewelry finishing to improve visual appeal.
Parameters
| Melting point | 848°C |
| density | 3.68 |
| form | green-yellow orthorhombic crystals |
| color | green-yellow orthorhombic crystals, crystalline |
| Odor | odorless |
| Water Solubility | 27.3-27.7 g/100 mL at 20 ºC |
| CAS DataBase Reference | 7786-81-4(CAS DataBase Reference) |
| EPA Substance Registry System | Nickel sulfate (7786-81-4) |
Safety Information
| Hazard Codes | Xn,N,T |
| Risk Statements | 22-40-42/43-50/53-51/53-43-68-48/23-61-49-38-20/22 |
| Safety Statements | 22-36/37-60-61-45-23-53 |
| RIDADR | UN 3077 9/PG 3 |
| WGK Germany | 3 |
| RTECS | QR9350000 |
| HazardClass | 9 |
| PackingGroup | III |
| Hazardous Substances Data | 7786-81-4(Hazardous Substances Data) |
Nickel sulfate (NiSO₄) exists in various crystalline forms based on its hydration level, with color variations ranging from greenish-yellow to bright blue or emerald green. This versatile compound is widely used in electroplating nickel onto iron and copper substrates, serving as a reliable catalyst in chemical reactions, acting as a key mordant in textile processing, and functioning as a specialized surface coating material for targeted industrial applications.
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