Beryllium Oxide

99% Beryllium Oxide is a white colored, crystalline, inorganic compound that emits toxic fumes of beryllium oxides upon heating.
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  • Color:

    Colourless,vitreous crystals
  • Product Detail

Beryllium Oxide

Nickname: 99% Beryllium Oxide, Beryllium (II) Oxide, Beryllium oxide (BeO).

【CAS】 1304-56-9


Chemical formula: BeO

Molar mass: 25.011 g·mol−1

Appearance: Colourless,vitreous crystals

Odor: Odourless

Density: 3.01g/cm3

Melting point: 2,507 °C (4,545 °F; 2,780 K)
Boiling point:
3,900 °C (7,050 °F; 4,170 K)

Solubility in water:0.00002 g/100 mL

Enterprise Specification for Beryllium Oxide

Symbol Grade Chemical Component
BeO Foreign Mat.≤ppm
SiO2 P Al2O3 Fe2O3 Na2O CaO Bi Ni K2O Zn Cr MgO Pb Mn Cu Co Cd ZrO2
UMBO990 99.0% 99.2139 0.4 0.128 0.104 0.054 0.0463 0.0109 0.0075 0.0072 0.0061 0.0056 0.0054 0.0045 0.0033 0.0018 0.0006 0.0005 0.0004 0
UMBO995 99.5% 99.7836 0.077 0.034 0.052 0.038 0.0042 0.0011 0.0033 0.0005 0.0021 0.001 0.0005 0.0007 0.0008 0.0004 0.0001 0.0003 0.0004 0

Particle Size: 46〜74 Micron; Lot Size:  10kg, 50kg, 100kg;   Packing: Blik drum, or paper bag.

What is beryllium oxide used for?

Beryllium oxide is used as many high-performance semiconductor parts for applications such as radio equipment. Used as a filler in some thermal interface materials such as thermal grease. Power semiconductor devices have used beryllium oxide ceramic between the silicon chip and the metal mounting base of the package to achieve a lower value of thermal resistance. Also used as a structural ceramic for high-performance microwave devices, vacuum tubes, magnetrons, and gas lasers. 

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