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Neodymium(III) hydroxide is an insoluble inorganic compound with the chemical formula Nd(OH)3.[2][3]
_hydroxide.jpg) | |
| Identifiers | |
|---|---|
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.036.816 |
| EC Number |
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PubChem CID |
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| Properties | |
| Nd(OH)3 | |
| Molar mass | 195.266 |
| Appearance | rose solid[1] |
| Related compounds | |
Other anions |
neodymium(III) oxide |
Other cations |
praseodymium(III) hydroxide samarium(III) hydroxide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Neodymium(III) nitrate and ammonia water will react to produce neodymium(III) hydroxide:[4]
- Nd(NO3)3 + 3 NH3·H2O → Nd(OH)3↓ + 3 NH4NO3
If the amount of Nd(NO3)3 is 40g/L, the amount of ammonia water needed is 0.50 mol/L. The ammonia water is mixed into the Nd(NO3)3 solution at the speed of 1.5mL/min, and polyethylene glycol is used to control pH. The process will produce neodymium(III) hydroxide powder with grain size ≤1μm.[5]
Neodymium(III) hydroxide can react with acid and produce neodymium salts:
- Nd(OH)3 + 3 H+ → Nd3+ + 3 H2O
For example, to create neodymium acetate with neodymium(III) hydroxide:[6]
- Nd(OH)3 + 3CH3COOH → Nd(CH3COO)3 + 3H2O
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