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202770

Sigma-Aldrich

Beryllium oxide

99.98% trace metals basis

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Synonym(s):
Beryllia, Beryllium monoxide
Empirical Formula (Hill Notation):
BeO
CAS Number:
Molecular Weight:
25.01
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

99.98% trace metals basis

form

powder

reaction suitability

reagent type: catalyst
core: beryllium

density

3.01 g/mL at 25 °C (lit.)

SMILES string

[Be]=O

InChI

1S/Be.O

InChI key

LTPBRCUWZOMYOC-UHFFFAOYSA-N

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1 of 4

This Item
554847288497230693
Beryllium oxide 99.98% trace metals basis

202770

Beryllium oxide

Barium oxide 99.99% trace metals basis

554847

Barium oxide

Barium oxide 97%

288497

Barium oxide

Zirconium(IV) oxide powder, 5 μm, 99% trace metals basis

230693

Zirconium(IV) oxide

form

powder

form

powder

form

powder

form

powder

density

3.01 g/mL at 25 °C (lit.)

density

5.72 g/mL at 25 °C (lit.)

density

5.72 g/mL at 25 °C (lit.)

density

5.89 g/mL at 25 °C (lit.)

reaction suitability

reagent type: catalyst
core: beryllium

reaction suitability

reagent type: catalyst
core: barium

reaction suitability

reagent type: catalyst
core: barium

reaction suitability

reagent type: catalyst
core: zirconium

General description

Beryllium oxide is a ceramic material with a unique combination of high electrical resistance and dielectric strength with high thermal conductivity. It also shows high transmission in a wide spectral range from VUV(vacuum UV) through IR. It is widely used in the field of optical devices and electronic transistors.

Application

Beryllium oxide can be used as an additive to fabricate uranium dioxide kernels(nuclear fuel) with enhanced thermal conductivity.

pictograms

Skull and crossbonesHealth hazard

signalword

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Carc. 1B Inhalation - Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 1 Inhalation - STOT SE 3

target_organs

Lungs, Respiratory system

Storage Class

6.1B - Non-combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Yuhui Qu et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 67(2), 350-354 (2006-09-02)
The structure and harmonic vibrations of Be(n)O(n) (n=3-10) clusters have been investigated using density functional theory. All structures are found to be cumulenic D(nh) rings (equal bonds, alternating angles), with one intense out of plane mode and three infrared-active degenerate
Gregory A Day et al.
Experimental lung research, 31(3), 341-360 (2005-06-21)
Beryllium metal and its oxide and alloys are materials of industrial significance with recognized adverse effects on worker health. Currently, the degree of risk associated with exposure to these materials in the workplace is assessed through measurement of beryllium aerosol
Henrik Grobe et al.
European radiology, 19(5), 1156-1160 (2008-12-17)
The aim of this study was to assess the effect of eye and testicle shielding on radiation dose to the lens and the testes of patients undergoing CT examinations. Fifty-one male patients underwent CT twice with identical protocols initially without
L N Koppel et al.
The Review of scientific instruments, 69(4), 1893-1897 (2001-09-07)
Definitive mineralogical identification of materials with x-ray diffraction and fluorescence on remote planetary probes requires the development of a rugged miniature x-ray source that complies with the mass, power, thermal, and electrical management constraints imposed by space missions. Conventional x-ray
Aleksandr B Stefaniak et al.
Analytical and bioanalytical chemistry, 391(6), 2071-2077 (2008-01-29)
Owing to the absence of readily available certified particulate reference materials (RMs), most analytical methods used to determine particulate contaminant levels in workplace or other environments are validated using solution RMs, which do not assess the robustness of the digestion

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