Praseodymium(III) hydroxide
Praseodymium(III) hydroxide is an inorganic compound with a chemical formula Pr(OH)3.
_hydroxide.jpg.webp) | |
| Identifiers | |
|---|---|
3D model (JSmol) |
|
| ChemSpider | |
| ECHA InfoCard | 100.036.815 |
| EC Number |
|
PubChem CID |
|
CompTox Dashboard (EPA) |
|
| |
| |
| Properties | |
| Pr(OH)3 | |
| Molar mass | 191.932 |
| Appearance | green solid[1] |
| Melting point | 220 °C (493 K)（dissolves）[2] |
| Virtually insoluble in water | |
Solubility product (Ksp) |
3.39×10−24[3] |
| Related compounds | |
Other anions |
Praseodymium(III) oxide |
Other cations |
Cerium(III) hydroxide Neodymium(III) hydroxide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
Production
The reaction between ammonia water and praseodymium(III) nitrate produces praseodymium(III) hydroxide:[2]
- Pr(NO3)3 + 3 NH3·H2O → Pr(OH)3↓ + 3 NH4NO3
Chemical properties
Praseodymium(III) hydroxide can react with acid and produce praseodymium salts:
- Pr(OH)3 + 3 H+ → Pr3+ + 3 H2O, for example;
Pr(OH)3 + 3CH3COOH forms Pr(CH3CO2)3 + 3H2O;
Praseodymium(III) hydroxide + Acetic acid forms praseodymium(III) acetate and water.
References
- Yi, Xianwu. Series of Inorganic Chemistry - Vol 7 (in Chinese). Science Press. pp. 168-171. (2) Hydroxides
- 《无机化合物制备手册》. 朱文祥 主编. 化学工业出版社. P98~99. 【III-103】氢氧化镨（praseodymium hydroxide）
- John Rumble (June 18, 2018). CRC Handbook of Chemistry and Physics (99 ed.). CRC Press. pp. 5–189. ISBN 1138561630.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.