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Yttrium Fluoride YF3
Yttrium fluoride
Molecular formula: YF3
C A S: 13709-49-4
Physical properties: white powder, transparent, 0.3 ~ 6mm needles density 4.01, melting point 1152 ℃. Boiling point 2230 ℃. Insoluble in water, insoluble in hydrochloric acid, nitric acid and sulfuric acid, but can be dissolved in perchloric acid. There are hygroscopic in the air, more stable.
Chemical properties: the ammonium fluoride NH4F YF3 generate an insoluble complex salt?.
Uses: used in light-emitting materials, phosphors. Optical glass, producing a rare earth crystal laser materials, conversion luminescent material, fluoride glass optical fiber and fluoride glass. Carbon electrode arc lamp illumination source for manufacturing. Electrolytic preparation of metal yttrium raw materials.
specification:
|
Categories Impurity |
3N |
4N |
5N |
|
|
Non-rare earth impurities maximum (ppm) |
Fe |
100 |
10 |
5 |
|
SiO2 |
100 |
50 |
30 |
|
|
CaO |
200 |
50 |
30 |
|
|
Cl |
200 |
200 |
200 |
|
|
Loss on ignition% |
1.0 |
1.0 |
1.0 |
|
|
|
|
|
|
|
|
Rare earth impurities maximum (ppm) |
La2O3 |
100 |
10 |
1 |
|
CeO2 |
100 |
10 |
1 |
|
|
Pr6O11 |
100 |
10 |
1 |
|
|
Nd2O3 |
100 |
10 |
1 |
|
|
Sm2O3 |
100 |
10 |
1 |
|
|
Eu2O3 |
100 |
10 |
1 |
|
|
Gd2O3 |
100 |
10 |
1 |
|
|
Tb4O7 |
100 |
10 |
1 |
|
|
Dy2O3 |
100 |
10 |
1 |
|
|
Ho2O3 |
100 |
10 |
1 |
|
|
Er2O3 |
100 |
10 |
1 |
|
|
Tm2O3 |
100 |
10 |
1 |
|
|
Yb2O3 |
100 |
10 |
1 |
|
|
Lu2O3 |
100 |
10 |
1 |
|