Overview
Nickel hydroxide (CAS 12054-48-7 ), also referred to commercially as Green nickel oxide, is an inorganic nickel compound used primarily as an active electrode material and as a precursor in nickel-based chemical synthesis.
Its role spans energy storage, surface treatment, and catalyst manufacturing across several industrial sectors. In rechargeable battery production, it serves as the primary cathode active material in nickel-metal hydride and nickel-cadmium cells.
This material directly determines charge capacity and cycle performance in energy storage systems. Electroplating and surface finishing operations use it as a nickel ion source for depositing corrosion-resistant coatings on automotive and industrial components.
In catalyst manufacturing, it acts as a precursor for nickel-based hydrogenation and reforming catalysts used in petrochemical processing. Mining and metallurgical refining operations also use it as an intermediate in industrial processes.
These operations involve converting nickel ore concentrates into refined nickel salts or metal. Nickel hydroxide is supplied as a fine green powder, with particle size and surface area specifications varying by application.
Battery-grade material carries tighter controls than technical-grade for specific manufacturing needs. Battery-grade and technical-grade are the primary commercial distinctions for industrial procurement and supply chain management.
Battery-grade product is held to stricter purity and morphology standards to ensure optimal performance. Bulk quantities are standard for industrial buyers, with packaging typically in drums or bulk bags for safe transport.
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Physical Properties
| Melting Point | 230 °C (decomp) |
| Density | 4.1 g/cm³ |
| Appearance | Nickel hydroxide is a light, apple-green powder. |
| Color | Green |
| Form | Powder |
| Water Solubility | Insoluble in water. Soluble in dilute acid. |
| pH | 8.37(1 mM solution);8.37(10 mM solution);8.37(100 mM solution) |
Safety & Handling
Danger GHS07 GHS08 GHS09 GHS06 Hazard Statements H302 Harmful if swallowed H315 Causes skin irritation H317 May cause an allergic skin reaction H330 Fatal if inhaled H332 Harmful if inhaled H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled H341 Suspected of causing genetic defects H350 May cause cancer H360 May damage fertility or the unborn child H372 Causes damage to organs through prolonged or repeated exposure H400 Very toxic to aquatic life H410 Very toxic to aquatic life with long lasting effects Precautionary Statements P203 Obtain, consult and follow expert instructions for use. P233 Keep container tightly closed. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P272 Contaminated work clothing should not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P284 In case of inadequate ventilation wear respiratory protection. P316 Get emergency medical help immediately. P317 Get emergency medical help. P318 IF exposed or concerned, get medical advice. P319 Get medical advice/attention if you feel unwell. P320 Specific treatment is urgent (see … on this label). P321 Specific treatment (see … on this label). P330 Rinse mouth. P391 Collect spillage. P403 Store in a well-ventilated place. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P333+P317 Get emergency medical help. P342+P316 Get emergency medical help immediately. P362+P364 Take off contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed.
Trade & Regulatory
| HS Code | 28254000 |
| UN Number | 3077 |
| ADR Class | 9 |
| Packing Group | III |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 12054-48-7
- EC Number
- 235-008-5
- Mol. Weight
- 92.708
- HS Code
- 28254000
- Category
- Alkalis & Bases