Superior Evaporants Incorporated

Technical Information

Material: Lanthanum Fluoride

 

 

Formula: LaF3

Molecular weight: 195.9

Product Form:  2‑4mm White granules

Catalog#:  3100

 

Density: 6.0 g/cm3

Melting point: 1450oC

Vapor pressure at 1200oC ~ 10‑3 mbar

Vapor pressure at 1600oC ~ 10‑2 mbar 

 

 

Type analysis:

Iron(Fe)          < 3 ppm

Nickel(Ni)        < 1 ppm

Manganese(Mn)     < 1 ppm

Copper(Cu)        < 2 ppm

Chromium(Cr)      < 1 ppm

Cobalt(Co)        < 1 ppm

 

Properties of thin film:

 

Transmission range: 250‑14000nm

Refractive index at 500nm ~ 1.58

Evaporation temperature ~ 2400oC

 

 

Hints on evaporation:

 

 

Evaporate using E‑Beam or resistance heated molybdenum boats

 

 

Applications:

 

Anti‑reflection coatings, IR multilayers.