Neodymium(III) hydroxide

Neodymium(III) hydroxide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.036.816 Edit this at Wikidata
EC Number
  • 240-514-4
  • InChI=1S/Nd.3H2O/h;3*1H2/q+3;;;/p-3
    Key: ZBAQHMBLDSQPHC-UHFFFAOYSA-K
  • [Nd+3].[OH-].[OH-].[OH-]
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).

Neodymium(III) hydroxide is an insoluble inorganic compound with the chemical formula Nd(OH)3.[2][3]

Preparation

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:[6]

Nd(OH)3 + 3CH3COOH → Nd(CH3COO)3 + 3H2O

See also

References

  1. ^ 《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
  2. ^ PubChem. "Neodymium hydroxide (Nd(OH)3)". pubchem.ncbi.nlm.nih.gov. Retrieved 2022-11-24.
  3. ^ Elements, American. "Neodymium Hydroxide". American Elements. Retrieved 2022-11-24.
  4. ^ 《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）
  5. ^ 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
  6. ^ Patnaik, Pradyot (2003). Handbook of inorganic chemicals. McGraw-Hill handbooks. New York, NY: McGraw Hill Education. pp. 639–640. doi:10.5860/choice.40-6428. ISBN 978-0-07-049439-8.

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