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Opis
Beryllium Oxide
Other Names: Beryllia
CAS Number: 1304-56-9
Sum Formula: BeO
Molar Mass: 25.01 g/mol
Appearance: White crystalline solid or powder
Beryllium oxide is a highly refractory inorganic compound known for its exceptional thermal conductivity, high electrical resistance, and mechanical strength. It is widely used in high-performance ceramics, electronics, and nuclear technology due to its unique combination of properties.
Chemical and Physical Properties
Density: 3.01 g/cm³
Melting Point: 2507°C
Boiling Point: ~3900°C (sublimes)
Solubility in Water: Insoluble
Solubility in Other Solvents: Insoluble in most solvents; reacts slowly with acids
Odor: Odorless
Applications
Ceramics and Electronics: Used to manufacture high-thermal-conductivity insulators, substrates, and components in advanced electronic devices.
Nuclear Industry: Applied as a moderator and reflector material in nuclear reactors.
Material Science: Incorporated into high-strength, high-temperature structural materials.
Optical Applications: Studied for use in infrared and laser window technologies.
Thermal Management: Employed in systems requiring efficient heat dissipation under extreme conditions.
Safety
Signal Word: Danger
H301 (98%): Toxic if swallowed [Danger Acute toxicity, oral]
H315 (98%): Causes skin irritation [Warning Skin corrosion/irritation]
H317 (98%): May cause an allergic skin reaction [Warning Sensitization, Skin]
H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
H330 (100%): Fatal if inhaled [Danger Acute toxicity, inhalation]
H335 (100%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
H350 (98%): May cause cancer [Danger Carcinogenicity]
H372 (100%): Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
P203, P260, P261, P264, P264+P265, P270, P271, P272, P280, P284, P301+P316, P302+P352, P304+P340, P305+P351+P338, P316, P318, P319, P320, P321, P330, P332+P317, P333+P317, P337+P317, P362+P364, P403+P233, P405, and P501
Handling and Storage
Storage Conditions: Store in a tightly sealed container in a dry, well-ventilated area away from acids and incompatible materials.
Handling Precautions: Avoid creating dust. Use only with appropriate respiratory protection and PPE in controlled environments. Handle with extreme care due to its toxicity by inhalation.