Lutetium fluoride is an inorganic compound, a salt of lutetium and hydrofluoric acid with the formula LuF 3 , colorless crystals, does not dissolve in water, forms crystalline hydrates .
| Lutetium fluoride | |
|---|---|
| Are common | |
| Systematic name | Lutetium fluoride |
| Traditional names | Lutetium fluoride |
| Chem. formula | LuF 3 |
| Physical properties | |
| condition | colorless crystals |
| Molar mass | 231.96 g / mol |
| Density | 8.29; 8.3 g / cm³ |
| Thermal properties | |
| T. melt. | 1182; 1184 ° C |
| T. bale. | 2200; 2230 ° C |
| Like heat resistant. | 87.9 J / (mol · K) |
| Enthalpy of Education | -1673.6 kJ / mol |
| Classification | |
| Reg. CAS number | 13760-81-1 |
| PubChem | |
| Reg. EINECS number | 237-355-8 |
| Smiles | |
| Inchi | |
| ChemSpider | |
Getting
- The effect of hydrofluoric acid on soluble salts of lutetium:
- {\ displaystyle {\ mathsf {LuCl_ {3} + 3HF \ {\ xrightarrow {}} \ 4LuF_ {3} \ downarrow + 3HCl}}}
- {\ displaystyle {\ mathsf {LuCl_ {3} + 3HF \ {\ xrightarrow {}} \ 4LuF_ {3} \ downarrow + 3HCl}}}
- The effect of gaseous hydrogen fluoride on lutetium oxide :
Physical Properties
Lutetium fluoride forms colorless crystals of rhombic syngony , space group P nma , cell parameters a = 0.6145 nm, b = 0.6761 nm, c = 0.4472 nm, Z = 4.
At 957 ° С, a transition to the phase of trigonal syngony occurs.
Not soluble in water.
Forms crystalline hydrates.
Literature
- Chemical Encyclopedia / Editorial Board: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1990. - T. 2. - 671 p. - ISBN 5-82270-035-5 .
- CRC Handbook of Chemistry and Physics . - 89th Edition. - Taylor and Francis Group, LLC, 2008-2009.
- Chemical Encyclopedic Dictionary / Editorial: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1983. - 792 p.