 |
| Synonyms:Nickelous sulfate hexahydrate Nickel hexahydrate sulfate Nickel monosulfate hexahydrate Sulfuric acid, nickel(2+) salt, hexahydrate Nickel sulfate 6H2O NiSO4·6H2O Molecular Formula:NiSO4 · 6H2O Molecular Weight: 262.84 HS Code: 2833240000 Grade:Electroplating gradeNi(22%) Hazard Class:Class9 | |||||||||
10101-97-0
bosschem
10101-97-0
Nickel sulfate hexahydrate (NiSO₄·6H₂O) is the most widely used nickel salt in industry, supplied as blue to emerald-green crystalline powder that dissolves freely in water to release Ni²⁺ ions. It is the principal source of nickel ions for electroplating, electroless nickel and battery-materials manufacturing, and it also serves as a catalyst precursor and textile mordant.
Because the crystal is built from nickel cations and sulfate anions with six waters of crystallization, the salt is easy to dissolve, dose and purify — and its impurity profile can be controlled to very tight limits. This combination of solubility, high nickel content (theoretical 22.3% Ni) and grade flexibility is why nickel sulfate hexahydrate has become the standard nickel source across the electroplating, energy-storage and catalysis industries.
A single salt, four core value propositions:
Electroplating & Surface Finishing:
● the core nickel salt of Watts nickel baths, electroless nickel and nickel-alloy plating;
Battery Materials:
● the key raw material for NCM/NCA cathode precursors, Ni–MH and Ni–Cd battery materials;
Catalysts:
● a high-purity precursor for hydrogenation, oxidation and petrochemical catalysts;
Pigments, Mordants & Specialty Uses:
● a mordant in textile dyeing, a blackening agent for zinc and brass, and a source of nickel in specialty chemicals.
Item | Specification |
Chemical Name | Nickel(II) sulfate hexahydrate (Nickelous sulfate hexahydrate) |
Synonyms | Nickel sulfate hexahydrate; Sulphuric acid nickel(2+) salt hexahydrate; Nickel monosulfate hexahydrate |
CAS No. | 10101-97-0 |
EC No. (EINECS) | 232-104-9 |
Molecular Formula | NiSO₄·6H₂O |
Molecular Weight | 262.85 g/mol |
HS Code | 2833.24 (sulphates of nickel; 8-digit code may vary by destination) |
Solubility | Freely soluble in water (≈ 25.6 g/100 ml at 20 °C); practically insoluble in ethanol |
Aqueous pH | Slightly acidic (typical 10% solution pH ≈ 4.5 – 5.5) |
Nickel sulfate crystallizes in several hydration states. The hexahydrate (CAS 10101-97-0) is the dominant commercial form — a stable, the heptahydrate (CAS 10101-98-1) and the anhydrous salt (CAS 7786-81-4) are also known but rarely traded in bulk. For most purposes “electroplating nickel sulfate” and “battery nickel sulfate” both refer to the hexahydrate.
1 Electroplating & Surface Finishing (Core Application)
Nickel sulfate hexahydrate is the workhorse nickel salt of the surface-finishing industry:
● Watts nickel plating: main salt of the classic bright and semi-bright nickel bath for decorative and functional coatings;
● Electroless nickel: source of nickel ions in chemical (autocatalytic) nickel–phosphorus plating of steel, aluminum and plastics;
● Nickel-alloy plating: used in Ni–Co, Ni–Fe and Ni–Zn alloy systems for functional and magnetic coatings;
● Electroforming and PCB: supplies nickel for precision electroforming, connector plating and circuit-board finishing;
● Auxiliary use: additive in cadmium and zinc plating baths to refine deposits.
2 Battery Materials & Energy Storage
● NCM/NCA cathode precursors: the nickel source in co-precipitation of nickel–cobalt–manganese and nickel–cobalt–aluminum hydroxide precursors for lithium-ion cathodes;
● Ni–MH and Ni–Cd batteries: nickel hydroxide feed for nickel–metal-hydride and nickel–cadmium electrode materials;
● Energy-storage materials: building block for other nickel-based positive electrode and electrochromic materials.
3 Catalysts
● Hydrogenation catalysts: precursor for nickel-based hydrogenation and Raney-type catalyst manufacture;
● Oxidation and desulfurization: nickel source for oxidation, hydrodesulfurization and reforming catalyst formulations;
● Fine chemicals: supported nickel catalysts for organic synthesis and industrial hydrogenation processes.
4 Pigments, Mordants & Specialty Chemicals
● Textile mordant: fixes acid and mordant dyes on wool, nylon and other fibers;
● Blackening agent: produces black finishes on zinc and brass surfaces;
● Ceramic and glass pigments: nickel oxide/colorant precursor in ceramic and enamel formulations;
● Laboratory and analysis: reagent-grade salt for nickel determination and electroanalytical methods.
Packaging (customizable):
● 25 kg woven bag with PE liner, 25 kg fiber drum, or 500 kg – 1,000 kg FIBC for bulk;
Storage:
● Keep in a cool, dry, well-ventilated area away from direct sunlight and heat;
● Keep containers tightly closed to prevent moisture pick-up and caking;
● Avoid contact with strong oxidizers and incompatible materials; store away from food and feedstuffs;
● Recommended storage temperature 5 °C – 35 °C.
● Factory-direct supply: own production capacity, transparent pricing, no middleman markup;
● Stable quality: strict internal control, every batch tested, COA with every shipment;
● Export experience: familiar with sea/air shipping documentation for chemical commodities, complete paperwork support;
● Fast response: quotations and technical support (COA, bath formulation advice) within 24 hours; small trial orders accepted.
It is the principal nickel salt of the electroplating industry (Watts nickel, electroless nickel and nickel-alloy baths), the key raw material for NCM/NCA lithium-battery cathode precursors and Ni–MH/Ni–Cd battery materials, a high-purity catalyst precursor, and a textile mordant and metal blackening agent.
The hexahydrate (NiSO₄·6H₂O, CAS 10101-97-0) is the standard commercial form: a stable blue-green crystal with 22% theoretical Ni content, freely soluble in water. The heptahydrate (CAS 10101-98-1) and anhydrous salt (CAS 7786-81-4) exist but are rarely traded in bulk. Buyers should always confirm the hydration form when quoting nickel content.
Both grades control metallic impurities, but battery grade applies even stricter limits on Cu, Fe, Zn, Pb, Co, Ca and Mg, because trace metals poison NCM/NCA cathode precursors and shorten battery life. Electroplating grade prioritizes deposit quality and bath stability. We supply both, with full COA data per batch.
