Nickel(II) hydroxide
CAS 12054-48-7
EC 235-008-5
Formula H2NiO2
MW 92.71 g/mol
Salts & Minerals Mining & MetalsAutomotiveElectronicsPlastics & Polymers CatalysispH Regulation & Buffering
Description
Nickel(II) hydroxide (CAS 12054-48-7, EC 235-008-5, formula H2NiO2) is an inorganic nickel salt also referred to as Ni(OH)2, nickel hydroxide, and by the reference number N 104966. It carries no E-code designation and is classified under HS code 28254000 within the Salts & Minerals category.
In rechargeable battery manufacturing, Ni(OH)2 serves as the active cathode material in nickel-metal hydride cells, where it undergoes reversible oxidation to release and store electrical charge. It also functions as a pH-regulating agent in metal surface treatment baths and acts as a catalyst precursor in polymer and petrochemical processing, where thermal decomposition generates active nickel oxide species.
Nickel(II) hydroxide is supplied as a technical-grade powder and is subject to REACH registration requirements within the EU. Procurement teams should confirm SDS compliance and substance authorisation status prior to ordering, as nickel compounds are listed as substances of very high concern under REACH Annex XIV.
In rechargeable battery manufacturing, Ni(OH)2 serves as the active cathode material in nickel-metal hydride cells, where it undergoes reversible oxidation to release and store electrical charge. It also functions as a pH-regulating agent in metal surface treatment baths and acts as a catalyst precursor in polymer and petrochemical processing, where thermal decomposition generates active nickel oxide species.
Nickel(II) hydroxide is supplied as a technical-grade powder and is subject to REACH registration requirements within the EU. Procurement teams should confirm SDS compliance and substance authorisation status prior to ordering, as nickel compounds are listed as substances of very high concern under REACH Annex XIV.
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 (Learn More)
Danger GHS07 GHS08 GHS09 GHS06
H
H302H315H317H330H332H334H341H350H360H372H400H410
P
P203P233P260P261P264P270P271P272P273P280P284P316P317P318P319P320P321P330P391P403P405P501P301+P317P302+P352P304+P340P332+P317P333+P317P342+P316P362+P364P403+P233
Trade & Regulatory
| HS Code | 28254000 |
| UN Number | 3077 |
| ADR Class | 9 |
| Packing Group | III |
| WGK (Germany) | 3 |
Other Names
nickel(2+) dihydroxideNi(OH)₂nickel hydroxideNi(OH)2N 104966nickel(ii)
Related Products
Raw Materials
Derivatives
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