Difference between revisions of "Beryllium oxide"
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| OtherNames = Beryllia, [[Bromellite]] | | OtherNames = Beryllia, [[Bromellite]] | ||
| Section1 = {{Chembox Identifiers | | Section1 = {{Chembox Identifiers | ||
| + | | InChI=1/Be.O/rBeO/c1-2 | ||
| + | | InChIKey = LTPBRCUWZOMYOC-SRAGPBHZAE | ||
| + | | StdInChI = 1S/Be.O | ||
| + | | StdInChIKey = LTPBRCUWZOMYOC-UHFFFAOYSA-N | ||
| + | | ChemSpiderID = 14092 | ||
| CASNo = 1304-56-9 | | CASNo = 1304-56-9 | ||
| CASNo_Ref = {{cascite}} | | CASNo_Ref = {{cascite}} | ||
| Line 17: | Line 22: | ||
| MeltingPt = 2530(30) °C | | MeltingPt = 2530(30) °C | ||
| BoilingPt = ''approx.'' 3900 °C | | BoilingPt = ''approx.'' 3900 °C | ||
| − | | ThermalConductivity = | + | | ThermalConductivity = 40 mW m<sup>−1</sup> K<sup>−1</sup> <!-- unreferenced --> |
| BandGap = 10.6 eV <!-- unreferenced --> | | BandGap = 10.6 eV <!-- unreferenced --> | ||
| RefractIndex = 1.719, 1.733 | | RefractIndex = 1.719, 1.733 | ||
}} | }} | ||
| Section3 = {{Chembox Structure | | Section3 = {{Chembox Structure | ||
| − | | Reference = | + | | Reference = <ref name="G&E">{{Greenwood&Earnshaw1st|pages=131–33}}.</ref> |
| − | | CrystalStruct = | + | | CrystalStruct = [[Wurtzite structure|Wurtzite]], [[Pearson symbol|hP4]] |
| SpaceGroup = P6<sub>3</sub>/''mc'' (No. 186) | | SpaceGroup = P6<sub>3</sub>/''mc'' (No. 186) | ||
}} | }} | ||
| Line 32: | Line 37: | ||
}} | }} | ||
| Section7 = {{Chembox Hazards | | Section7 = {{Chembox Hazards | ||
| − | | Reference = <ref>{{CLP Regulation|index=004-003-00-8|page=341}}</ref> | + | | Reference = <ref>{{CLP Regulation|index=004-003-00-8|page=341}}</ref><ref>{{PGCH-ref|id=0054|name=Beryllium and beryllium compounds}}.</ref> |
| EUIndex = 004-003-00-8 | | EUIndex = 004-003-00-8 | ||
| MSDS = {{ICSC-small|1325}} | | MSDS = {{ICSC-small|1325}} | ||
| Line 39: | Line 44: | ||
| HPhrases = {{H-phrases|350|330|301|372|319|335|315|317}} | | HPhrases = {{H-phrases|350|330|301|372|319|335|315|317}} | ||
| FlashPt = Non-flammable | | FlashPt = Non-flammable | ||
| − | | | + | | PEL = 0.002 mg m<sup>−3</sup> TWA (as Be)<br/>0.005 mg m<sup>−3</sup> 30 min. (as Be)<br/>0.025 mg m<sup>−3</sup> peak (as Be) |
}} | }} | ||
| Section8 = {{Chembox Related | | Section8 = {{Chembox Related | ||
| Line 46: | Line 51: | ||
}} | }} | ||
}} | }} | ||
| − | '''Beryllium oxide''', BeO, is | + | '''Beryllium oxide''', BeO, is an [[amphoteric oxide]].<ref name="G&E"/> As with all [[beryllium]] compounds, it is highly [[carcinogen]]ic.<ref name="IARC">{{IARC beryllium}}.</ref> |
==References== | ==References== | ||
| Line 52: | Line 57: | ||
==External links== | ==External links== | ||
| + | {{wikipedia|Beryllium oxide}} | ||
| + | *{{ICSC|1325|name=Beryllium oxide}} | ||
*{{EHC|106|name=Beryllium}} | *{{EHC|106|name=Beryllium}} | ||
*{{CICAD|32|name=Beryllium and Beryllium Compounds}} | *{{CICAD|32|name=Beryllium and Beryllium Compounds}} | ||
*{{HSG|044|name=Beryllium}} | *{{HSG|044|name=Beryllium}} | ||
| − | * | + | *{{NPI|13|name=Beryllium and compounds}} |
| − | + | *{{PGCH|0054|name=Beryllium and beryllium compounds}} | |
| − | * | ||
[[Category:Beryllium compounds]] | [[Category:Beryllium compounds]] | ||
Latest revision as of 15:47, 20 June 2010
| Beryllium oxide | |
|---|---|
| Other names | Beryllia, Bromellite |
| Identifiers | |
| InChI | InChI=1/Be.O/rBeO/c1-2 |
| InChIKey | LTPBRCUWZOMYOC-SRAGPBHZAE |
| Standard InChI | InChI=1S/Be.O |
| Standard InChIKey | LTPBRCUWZOMYOC-UHFFFAOYSA-N |
| CAS number | [] |
| EC number | |
| RTECS | DS4025000 |
| ChemSpider | |
| Properties[1] | |
| Chemical formula | BeO |
| Molar mass | 25.012 g mol−1 |
| Appearance | white solid |
| Density | 3.01 g cm−3 |
| Melting point |
2530(30) °C |
| Boiling point |
approx. 3900 °C |
| Solubility in water | 200 µg dm−3 |
| Band gap | 10.6 eV |
| Thermal conductivity | 40 mW m−1 K−1 |
| Refractive index (nD) | 1.719, 1.733 |
| Structure[2] | |
| Crystal structure | Wurtzite, hP4 |
| Space group | P63/mc (No. 186) |
| Thermochemistry[3] | |
| Std enthalpy of formation ΔfH |
–609.4(25) kJ mol−1 |
| Standard molar entropy S |
13.77(4) J K–1 mol–1 |
| Hazards[4][5] | |
| Material safety data sheet (MSDS) | ICSC |
| EU index number | 004-003-00-8 |
| GHS pictograms |  
|
| GHS signal word | DANGER |
| GHS hazard statements | H350, H330, H301, H372, H319, H335, H315, H317 |
| Flash point | Non-flammable |
| PEL (U.S.) | 0.002 mg m−3 TWA (as Be) 0.005 mg m−3 30 min. (as Be) 0.025 mg m−3 peak (as Be) |
| Related compounds | |
| Other anions | Beryllium sulfide Beryllium selenide Beryllium telluride |
| Other cations | Magnesium oxide Calcium oxide Strontium oxide Barium oxide |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
Beryllium oxide, BeO, is an amphoteric oxide.[2] As with all beryllium compounds, it is highly carcinogenic.[6]
References
- ↑ CRC Handbook of Chemistry and Physics, 62nd ed.; Weast, Robert C., Ed.; CRC Press: Boca Raton, FL, 1981; p 82. ISBN 0-8493-0462-8.
- ↑ 2.0 2.1 Greenwood, Norman N.; Earnshaw, A. Chemistry of the Elements; Pergamon: Oxford, 1984; pp 131–33. ISBN 0-08-022057-6.
- ↑ Cox, J. D.; Wagman, D. D.; Medvedev, V. A. CODATA Key Values for Thermodynamics; Hemisphere: New York, 1989. ISBN 0891167587, <http://www.codata.org/resources/databases/key1.html>.
- ↑ Index no. 004-003-00-8 of Annex VI, Part 3, to Regulation (EC) No 1272/2008 of the European Parliament and of the Council of 16 December 2008 on classification, labelling and packaging of substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006. OJEU L353, 31.12.2008, pp 1–1355 at p 341.
- ↑ Beryllium and beryllium compounds. In Pocket Guide to Chemical Hazards; U.S. Department of Health and Human Services (NIOSH) Publication No. 2005-149; Government Printing Office: Washington, DC, 2005. ISBN 9780160727511, <http://www.cdc.gov/niosh/npg/npgd0054.html>.
- ↑ Beryllium and Beryllium Compounds. In Beryllium, Cadmium, Mercury, and Exposures in the Glass Manufacturing Industry; IARC Monographs on the Evaluation of Carcinogenic Risks to Humans 58; International Agency for Research on Cancer: Lyon, France, 1993; pp 41–117. ISBN 92-832-1258-4, <http://monographs.iarc.fr/ENG/Monographs/vol58/mono58-6.pdf>.
External links
 |
See also the corresponding article on Wikipedia. |
- International Chemical Safety Card 1325
- IPCS Environmental Health Criteria 106: Beryllium
- IPCS Concise International Chemical Assessment Document 32: Beryllium and Beryllium Compounds
- IPCS Health and Safety Guide 044: Beryllium
- Entry for "Beryllium and compounds" on the Australian National Pollutant Inventory
- Beryllium and beryllium compounds, NIOSH Pocket Guide to Chemical Hazards
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