Chemistry:Neodymium(III) hydroxide
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3D model (JSmol)
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PubChem CID
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| Properties | |
| Nd(OH)3 | |
| Molar mass | 195.266 |
| Appearance | rose solid[1] |
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Other anions
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neodymium(III) oxide |
Other cations
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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) hydroxide is an insoluble inorganic compound with the chemical formula Nd(OH)3.[2][3]
Production
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]
Chemical properties
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:
- Nd(OH)3 + 3CH3COOH → Nd(CH3COO)3 + 3H2O
See also
References
- ↑ 《无机化学丛书》. 第七卷 钪 稀土元素. 易宪武 等主编. 科学出版社. P168~171. (2)氢氧化物
- ↑ PubChem. "Neodymium hydroxide (Nd(OH)3)" (in en). https://pubchem.ncbi.nlm.nih.gov/compound/16217370.
- ↑ Elements, American. "Neodymium Hydroxide" (in en). https://www.americanelements.com/neodymium-hydroxide-16469-17-3.
- ↑ 《无机化合物制备手册》. 朱文祥 主编. 化学工业出版社. 【III-119】氢氧化钕（neodymium hydroxide）
- ↑ 刘治平, 王晓铁. 氢氧化镧和氢氧化钕微粉的制备[J]. 《稀土》. Vol.25 No.3 Jun.2004
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