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202770

Sigma-Aldrich

Beryllium oxide

99.98% trace metals basis

Synonym(s):

Beryllia, Beryllium monoxide

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About This Item

Empirical Formula (Hill Notation):
BeO
CAS Number:
1304-56-9
Molecular Weight:
25.01
MDL number:
MFCD00003457
UNSPSC Code:
12352303
PubChem Substance ID:
24852117
NACRES:
NA.23

Quality Level

100

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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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
GHS06,GHS08

Signal Word

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 Code

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

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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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
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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
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
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
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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