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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:
Molecular Weight:
25.01
MDL number:
UNSPSC Code:
12352303
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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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

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


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Caroline Muller et al.
International journal of toxicology, 30(5), 538-545 (2011-10-21)
The toxicity of 3 chemical forms of beryllium (Be) was compared in this study. A total of 160 mice equally divided into 4 groups were exposed by inhalation (nose only) for 3 consecutive weeks, 5 d/week, 6 h/d. One group
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
Thomas J Oatts et al.
Journal of environmental monitoring : JEM, 14(2), 391-401 (2011-10-26)
Occupational sampling and analysis for multiple elements is generally approached using various approved methods from authoritative government sources such as the National Institute for Occupational Safety and Health (NIOSH), the Occupational Safety and Health Administration (OSHA) and the Environmental Protection
Kristin J Cummings et al.
Occupational and environmental medicine, 64(2), 134-140 (2006-10-18)
A 1998 survey at a beryllium oxide ceramics manufacturing facility found that 10% of workers hired in the previous 6 years had beryllium sensitisation as determined by the beryllium lymphocyte proliferation test (BeLPT). In response, the facility implemented an enhanced
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

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