Superior Evaporants Incorporated

Technical Information

Material:  Magnesium Oxide

 

 

Formula: MgO

Product Form: tablets ~ 0.5 gram

Catalog#: 1900

Density ~ 3.58 g/cm3

Melting point:  2800oC

Vapor pressure at 1700oC ~ 1 x 10‑4

Expansion coefficient:  11.2 x 10‑4 /K(300K)

Specific heat capacity:  0.209 Cal/g.K(273K)

Thermal conductivity:  0.14 Cal/K.cm.s(300K)

 

 

Solubility: Insoluble in H2O soluble in HF

 

 

Type analysis:

Iron(Fe)          <38 ppm

Nickel(Ni)        <20 ppm

Manganese(Mn)     < 8 ppm

Chromium(Cr)      <14 ppm

 

 

Properties of thin film:

 

Transmission range: 220‑8000nm

Refractive index at 550nm ~ 1.73

Refractive index at 2325nm ~ 1.70

Evaporation temperature ~ 2600oC

 

 

Hints on evaporation:

 

Evaporate using E‑Beam

 

 

Applications:

 

Anti‑reflection coatings, high damage threshold coatings e.g. inner cavity Nd:yag mirrors, U.V. coatings