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Beryllium oxide

CAS Number
1304-56-9
EC Number
215-133-1
Chemical Formula
BeO
Molecular Weight
25.012 g/mol

Description

Beryllium oxide (CAS 1304-56-9 ), also known as beryllia, is a high-performance ceramic material sourced for applications where exceptional thermal conductivity must be combined with electrical insulation. Thermalox is a recognized commercial grade used in precision industrial and defense components. In electronics, beryllia substrates and packages are used for high-power transistors and microwave devices. RF amplifiers utilize this material where heat dissipation is critical to component reliability. Aerospace and defense manufacturers specify these ceramics for radar systems and missile guidance components. Satellite electronics demand dimensional stability under extreme thermal cycling, making this material essential. Nuclear applications utilize beryllia as a neutron moderator and reflector material in reactor design. Specialty laser and optical systems also incorporate these components where thermal management directly affects output consistency. This ensures equipment longevity in demanding industrial environments. The material is supplied as high-purity powder, sintered ceramic shapes, and machined components to meet specific engineering tolerances. Standard grades include 99.0% and 99.5% purity powder. These powders are used for ceramic processing, as well as finished substrate forms for electronics manufacturing. Industrial buyers typically source to internal or customer-defined specifications. Given the tightly controlled performance requirements of end applications, quality control is paramount. This ensures the material meets the rigorous standards required for high-tech manufacturing sectors. Contact us for supply of Beryllium oxide Request Quote

Other Names (Synonyms)

Beryllia | Thermalox | Beryllium monoxide | Natural bromellite | Thermalox 995 | Beryllium oxide (BeO)

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point2530 °C
Boiling Point~3900 °C (approx)
Density3.01 g/cm³
Flash Point4300°C
Appearancesolid
Colorwhite
FormPowder
Water SolubilityInsoluble in water. Slowly soluble in concentrated acids, alkali hydroxides
Refractive Index1.733

Safety & Handling

Danger
GHS06· ToxicGHS08· Health HazardGHS07· Irritant

Hazard Statements

H301Toxic if swallowed
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H330Fatal if inhaled
H335May cause respiratory irritation
H305May be harmful if swallowed and enters airways
H350May cause cancer
H361Suspected of damaging fertility or the unborn child
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

Trade & Regulatory

UN Number1566
ADR Class6.1
Packing GroupII
WGK (Germany)1