Praseodymium (III) fluoride is a binary inorganic compound, a salt of praseodymium metal and hydrofluoric acid with the formula PrF 3 , pale green crystals, does not dissolve in water.
| Praseodymium fluoride | |
|---|---|
| Are common | |
| Systematic name | Praseodymium (III) fluoride |
| Traditional names | Praseodymium fluoride |
| Chem. formula | PrF 3 |
| Physical properties | |
| condition | pale green crystals |
| Molar mass | 197.90 g / mol |
| Density | 6.2; 6.3 g / cm³ |
| Thermal properties | |
| T. melt. | 1373; 1395; 1399; 1400 ° C |
| T. Kip. | 2300; 2330 ° C |
| Mol heat capacity | 103.34 J / (mol · K) |
| Education enthalpy | -1689 kJ / mol |
| Classification | |
| Reg. CAS number | 13709-46-1 |
| Pubchem | |
| Reg. EINECS number | 237-254-9 |
| SMILES | |
| Inchi | |
| Chemspider | |
Content
Getting
- Effect of hydrogen fluoride gas on hexapraseodymium undecaoxide
Physical Properties
Praseodymium (III) fluoride forms pale green crystals of trigonal syngony [1] (or hexagonal syngony [2] ), space group P 3 c1 [1] (or P 6 / mcm [2] ), cell parameters a = 0.7078 nm, c = 0.7239 nm, Z = 6, the structure of the cerium fluoride type CeF 3 .
Not soluble in water.
Application
- Getting praseodymium metallothermic method.
- Component of fluoride laser materials.
Notes
- ↑ 1 2 Chemical encyclopedia / Redcol .: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1995. - Vol. 4. - 639 p. - ISBN 5-82270-092-4 .
- ↑ 1 2 Chemist Handbook / Redkol .: B. Nikolsky et al. - 2nd ed., Rev. - M.-L.: Chemistry, 1966. - T. 1. - 1072 p.
Literature
- Chemist Handbook / Redkol .: Nikolsky B.P. et al. - 3rd ed., Rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
- Chemical Encyclopedic Dictionary / Redkol .: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1983. - 792 p.
- CRC Handbook of Chemistry and Physics . - 89th edition. - Taylor and Francis Group, LLC, 2008-2009.