Nickel Sulfate Hexahydrate, Nickel Sulphate Heptahydrate, Nickel Sulphate Anhydrous, 10101‑97‑0, 10101‑98‑1, 7786‑81‑4

✅ CAS Numbers for All Nickel Sulphate Types

1) Chemically Defined Forms (Hydration Forms)

2) Related Nickel Sulphate–Derived Compounds

3) Purity Grades (Electroplating, Battery, Technical)

Purity grades do not have separate CAS numbers — they all use the same CAS as their chemical form:

Nickel Sulphate Hexahydrate (CAS 10101‑97‑0)

Comprehensive Technical Description (English)

1. Chemical Identity

• Chemical Name: Nickel(II) Sulphate Hexahydrate

• CAS Number: 10101‑97‑0

• EC (EINECS) Number: 232‑104‑9

• Molecular Formula: NiSO₄·6H₂O

• Molecular Weight: approx. 262.84 g/mol

• Grade: Electroplating Grade (typical for industrial use)

2. Physical & Chemical Properties

• Appearance: Green crystalline solid

• Odor: Odorless

• Solubility: Highly soluble in water

• pH (100 g/L solution): ~4.3–4.7 (acidic)

• Density: approx. 2.07 g/cm³

• Stability: Stable under normal storage conditions; hygroscopic tendencies may occur

• Melting/Decomposition: Loses water of crystallization upon heating

These properties make it ideal for electroplating baths where high solubility and consistent nickel ion release are required.

3. Typical Technical Specifications (Electroplating Grade)

Electroplating applications require high purity and very low impurity levels:

• Nickel (Ni): ~22%

• Cobalt (Co): very low (ppm level)

• Iron (Fe): very low

• Copper (Cu): very low

• Zinc (Zn): very low

• Lead (Pb): Not Detected (N.D.)

• Insoluble Matter: extremely low

Low impurity levels ensure:

• Smooth, bright, uniform nickel deposits

• Reduced bath contamination

• Longer bath life and lower filtration load

4. Applications

Nickel Sulphate Hexahydrate is widely used in:

Electroplating Industry

• Primary nickel source in acidic nickel plating baths

• Used in bright nickel, semi-bright nickel, and strike nickel formulations

• Ensures consistent nickel ion concentration and stable bath performance

Metal Surface Treatment

• Pre-treatment and activation processes

• Intermediate layers in multi-step plating systems

Chemical Synthesis

• Precursor for other nickel compounds

• Laboratory reagent for analytical chemistry

5. Safety & Regulatory Information

Nickel salts are regulated due to their health and environmental hazards.

Hazard Classification (GHS/CLP)

• Carcinogenicity: May cause cancer by inhalation

• Respiratory Sensitization: May cause allergic asthma symptoms

• Skin Sensitization: May cause allergic skin reactions

• Aquatic Toxicity: Very toxic to aquatic life with long-lasting effects

Recommended PPE

• Respiratory protection (dust mask/respirator)

• Chemical-resistant gloves

• Safety goggles

• Local exhaust ventilation to minimize dust exposure

Environmental Precautions

• Prevent release into wastewater

• Heavy metal waste must be treated according to local regulations

6. Handling, Storage & Packaging

• Storage: Cool, dry, well‑ventilated area; keep container tightly closed

• Avoid: Moisture, dust formation, direct sunlight

• Packaging (typical):

  • 25 kg PE-lined kraft bags

  • 25 kg HDPE bags

  • 500–1000 kg big bags (depending on supplier)

7. Summary for Technical Documents

Nickel Sulphate Hexahydrate (CAS 10101‑97‑0) is a high‑purity, water‑soluble nickel salt primarily used in electroplating applications. Its controlled impurity profile and excellent solubility make it essential for producing smooth, bright, and uniform nickel coatings. Due to its classification as a carcinogenic and sensitizing substance, strict handling and environmental controls are required.

✅ Nickel Sulphate Hexahydrate – Other Names / Synonyms

1. Chemical Synonyms

• Nickel(II) Sulphate Hexahydrate

• Nickel(II) Sulfate Hexahydrate (US spelling)

• Nickel Sulphate 6‑Hydrate

• Nickel Sulfate 6‑Hydrate

• Nickelous Sulphate Hexahydrate

• Nickelous Sulfate Hexahydrate

• Nickel(II) Sulphate, 6‑Hydrate

• Nickel(II) Sulfate, 6‑Hydrate

2. Trade / Industrial Names

• Nickel Sulphate Crystals

• Nickel Sulphate Green Crystals

• Nickel Sulphate Electroplating Grade

• Nickel Sulphate Technical Grade

• Nickel Salt (Electroplating)

• NiSO₄·6H₂O (Nickel Sulphate Hexahydrate)

3. Abbreviations

• NiSO₄·6H₂O

• NSH (industry shorthand)

• Ni Sulphate Hexa

• Ni Sulphate 6H₂O

4. Related Chemical Identifiers

• UN Number: UN 3077 (for transport classification of nickel compounds)

• EC Number: 232‑104‑9

• Index Number (CLP): 028‑009‑00‑5

5. Synonyms Used in SDS / REACH Documents

• Sulfuric acid, nickel(2+) salt, hexahydrate

• Nickel sulfate (1:1), hexahydrate

• Nickel bis(sulfate) hexahydrate

• Nickel monosulfate hexahydrate

• Nickel Salt (Electroplating)