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Yttrium Fluoride YF3

Detailed

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:

 

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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


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