Difference between revisions of "Selenium tetrabromide"
Physchim62 (talk | contribs) |
Physchim62 (talk | contribs) |
||
| (4 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
{{chembox | {{chembox | ||
| Name = Selenium tetrabromide | | Name = Selenium tetrabromide | ||
| − | | IUPACName = tetra-μ< | + | | IUPACName = tetra-μ<sub>3</sub>-bromido-tetrakis(tribromidoselenium) |
| Section1 = {{Chembox Identifiers | | Section1 = {{Chembox Identifiers | ||
| StdInChI=1S/Br16Se4/c1-17(2,3)13- 18(4,5,6)14(17)20(10,11,12)15( 17)19(13,7,8,9)16(18)20 | | StdInChI=1S/Br16Se4/c1-17(2,3)13- 18(4,5,6)14(17)20(10,11,12)15( 17)19(13,7,8,9)16(18)20 | ||
| Line 16: | Line 16: | ||
| Solubility = hydrolyzes | | Solubility = hydrolyzes | ||
| MeltingPt = 75 °C ''decomp.'' | | MeltingPt = 75 °C ''decomp.'' | ||
| + | }} | ||
| + | | Section3 = {{Chembox Structure | ||
| + | | Reference =  (α-phase)<ref name="struct">{{citation | first1 = P. | last1 = Born | first2 = R. | last2 = Kniep | first3 = D. | last3 = Mootz | title = Phasenbeziehungen im System Se–Br und die Kristallstrukturen des dimorphen SeBr<sub>4</sub> | journal = Z. Anorg. Allg. Chem. | volume = 451 | issue = 1 | pages = 12–24 | year = 1979 | doi = 10.1002/zaac.19794510103}}.</ref> | ||
| + | | SpaceGroup = P31''c'' | ||
| + | | LattConst_a = 1020.0(7) pm | ||
| + | | LattConst_c = 3035.1(18) pm | ||
| + | }} | ||
| + | | Section4 = {{Chembox Structure | ||
| + | | Reference =  (β-phase)<ref name="struct"/> | ||
| + | | SpaceGroup = P2/''c'' | ||
| + | | LattConst_a = 1702 pm | ||
| + | | LattConst_b = 1039 pm | ||
| + | | LattConst_c = 1549 pm | ||
| + | | LattConst_beta = 117 | ||
}} | }} | ||
| Section7 = {{Chembox Hazards | | Section7 = {{Chembox Hazards | ||
| − | | Reference = <ref>{{CLP Regulation|index=034-002-00-8|page=428}}</ref> | + | | Reference = <ref>{{CLP Regulation|index=034-002-00-8|page=428}}</ref><ref>{{29CFR1910.1000Z1|entry=Selenium compounds (as Se)}}. {{PGCH-ref|id=0550|name=Selenium}}.</ref> |
| EUIndex = 034-002-00-8 | | EUIndex = 034-002-00-8 | ||
| MSDS = | | MSDS = | ||
| Line 25: | Line 39: | ||
| HPhrases = {{H-phrases|301|331|373|400|410}} | | HPhrases = {{H-phrases|301|331|373|400|410}} | ||
| PPhrases = {{P-phrases|260|261|264|270|271|273| 301+312|304+340|311|314|321|330|391| 403+233|405|501}} | | PPhrases = {{P-phrases|260|261|264|270|271|273| 301+312|304+340|311|314|321|330|391| 403+233|405|501}} | ||
| + | | PEL = 0.2 mg m<sup>−3</sup> TWA (as Se) | ||
}} | }} | ||
| Section8 = {{Chembox Related | | Section8 = {{Chembox Related | ||
| Line 32: | Line 47: | ||
}} | }} | ||
}} | }} | ||
| − | '''Selenium tetrabromide''', SeBr<sub>4</sub>, is the highest of the [[bromide]]s of [[selenium]]. It is used as a photoreceptor dopant in electrophotography and as an additive in [[silver]] [[electroplating]] baths. | + | '''Selenium tetrabromide''', SeBr<sub>4</sub>, is the highest of the [[bromide]]s of [[selenium]]. It is used as a photoreceptor dopant in electrophotography<ref>{{citation | inventor1-first = T. | inventor1-last = Teshima | inventor2-first = N. | inventor2-last = Nozaki | inventor3-first = M. | inventor3-last = Koyama | inventor4-first = K. | inventor4-last = Katoh | assignee = Stanley Electric Co. | title = Flexible multi-layer photoreceptor of electrophotography | country-code = US | patent-number = 4226929 | publication-date = 1980-10-07}}.</ref> and as an additive in [[silver]] [[electroplating]] baths.<ref name="Kirk-Othmer"/> |
==Notes and references== | ==Notes and references== | ||
| Line 43: | Line 58: | ||
==External links== | ==External links== | ||
*[http://www.webelements.com/compounds/selenium/Se-4_Br-16.html WebElements] | *[http://www.webelements.com/compounds/selenium/Se-4_Br-16.html WebElements] | ||
| + | *{{EHC|58|name=Selenium}} | ||
| + | *{{PIM|483|name=Selenium}} | ||
| + | *{{PGCH|0550|name=Selenium}} | ||
[[Category:Selenium compounds]] | [[Category:Selenium compounds]] | ||
Latest revision as of 07:32, 8 January 2011
| Selenium tetrabromide | |
|---|---|
| IUPAC name | tetra-μ3-bromido-tetrakis(tribromidoselenium) |
| Identifiers | |
| Standard InChI | InChI=1S/Br16Se4/c1-17(2,3)13- 18(4,5,6)14(17)20(10,11,12)15( 17)19(13,7,8,9)16(18)20 |
| Standard InChIKey | SPEQDFMFVYVPLS-UHFFFAOYSA-N |
| CAS number | [] |
| EC number | |
| Properties[1] | |
| Chemical formula | Se4Br16 |
| Molar mass | 1594.3 g mol−1 |
| Appearance | red-brown crystals |
| Melting point |
75 °C decomp. |
| Solubility in water | hydrolyzes |
| Structure (α-phase)[2] | |
| Space group | P31c |
| Lattice constant | a = 1020.0(7) pm, c = 3035.1(18) pm |
| Structure (β-phase)[2] | |
| Space group | P2/c |
| Lattice constant | a = 1702 pm, b = 1039 pm, c = 1549 pm, α = 90°, β = 117°, γ = 90° |
| Hazards[3][4] | |
| EU index number | 034-002-00-8 |
| GHS pictograms |   
|
| GHS signal word | DANGER |
| GHS hazard statements | H301, H331, H373, H400, H410 |
| GHS precautionary statements | P260, P261, P264, P270, P271, P273, P301+312, P304+340, P311, P314, P321, P330, P391, P403+233 |
| PEL (U.S.) | 0.2 mg m−3 TWA (as Se) |
| Related compounds | |
| Other anions | Selenium tetrafluoride Selenium tetrachloride |
| Other cations | Tellurium tetrabromide Polonium tetrabromide |
| Other compounds | Selenium monobromide Diselenium dibromide |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
Selenium tetrabromide, SeBr4, is the highest of the bromides of selenium. It is used as a photoreceptor dopant in electrophotography[5] and as an additive in silver electroplating baths.[1]
Notes and references
Notes
References
- ↑ 1.0 1.1 Ukeles, S. D.; Freiberg, M. Bromine, Inorganic Compounds. In Kirk-Othmer Encyclopedia of Chemical Technology; John Wiley: New York, 2002. DOI: 10.1002/0471238961.021815131001031.
- ↑ 2.0 2.1 Born, P.; Kniep, R.; Mootz, D. Phasenbeziehungen im System Se–Br und die Kristallstrukturen des dimorphen SeBr4. Z. Anorg. Allg. Chem. 1979, 451 (1), 12–24. DOI: 10.1002/zaac.19794510103.
- ↑ Index no. 034-002-00-8 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 428.
- ↑ "Selenium compounds (as Se)" in 29 C.F.R. § 1910.1000 Table Z-1, 54 FR 36767, September 5, 1989, as amended. Selenium. 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/npgd0550.html>.
- ↑ Teshima, T.; Nozaki, N.; Koyama, M., et al. (Stanley Electric Co.) Flexible multi-layer photoreceptor of electrophotography. US Patent 4226929, published 7 October 1980.
External links
- WebElements
- IPCS Environmental Health Criteria 58: Selenium
- IPCS Poisons Information Monograph 483: Selenium
- Selenium, NIOSH Pocket Guide to Chemical Hazards
| Error creating thumbnail: Unable to save thumbnail to destination |
This page is currently licensed under the Creative Commons Attribution 3.0 Unported license and any later versions of that license. |
