Difference between revisions of "Arsenic trisulfide"
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| Section2 = {{Chembox Properties | | Section2 = {{Chembox Properties | ||
| + | | Reference = <ref>{{RubberBible62nd|page=B-80}}.</ref> | ||
| Formula = As<sub>2</sub>S<sub>3</sub> | | Formula = As<sub>2</sub>S<sub>3</sub> | ||
| MolarMass = 246.04 g mol<sup>−1</sup> | | MolarMass = 246.04 g mol<sup>−1</sup> | ||
| Appearance = orange solid | | Appearance = orange solid | ||
| + | | Density = 3.43 g cm<sup>−3</sup> | ||
| + | | MeltingPt = 300 °C | ||
| + | | BoilingPt = 707 °C | ||
| + | | Solubility = insoluble | ||
| + | }} | ||
| + | | Section3 = {{Chembox Structure | ||
| + | | Reference = <ref>{{citation | last1 = Mullen | first1 = D. J. E. | last2 = Nowacki | first2 = W | journal = Z. Kristallogr. | volume = 136 | year = 1972 | pages = 48–65 | title = Refinement of the crystal structures of realgar, AsS, and orpiment, As<sub>2</sub>S<sub>3</sub>}}.</ref> | ||
| + | | SpaceGroup = P2<sub>1</sub>/''n'' | ||
| + | | LatticeConst_a = 1149 pm | ||
| + | | LatticeConst_b = 959 pm | ||
| + | | LatticeConst_c = 425 pm | ||
| + | | LatticeConst_beta = 90.45° | ||
}} | }} | ||
| Section7 = {{Chembox Hazards | | Section7 = {{Chembox Hazards | ||
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}} | }} | ||
| Section8 = {{Chembox Related | | Section8 = {{Chembox Related | ||
| − | | OtherAnions = [[Arsenic trioxide]] | + | | OtherAnions = [[Arsenic trioxide]]<br/>[[Arsenic triselenide]] |
| OtherCations = [[Phosphorus trisulfide]]<br/>[[Antimony trisulfide]]<br/>[[Bismuth sulfide]] | | OtherCations = [[Phosphorus trisulfide]]<br/>[[Antimony trisulfide]]<br/>[[Bismuth sulfide]] | ||
| OtherCpds = [[Tetraarsenic tetrasulfide]] | | OtherCpds = [[Tetraarsenic tetrasulfide]] | ||
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'''Arsenic trisulfide''' is the commonest [[sulfide]] of [[arsenic]]. It occurs naturally as the mineral [[orpiment]], which was an important yellow-orange pigment. | '''Arsenic trisulfide''' is the commonest [[sulfide]] of [[arsenic]]. It occurs naturally as the mineral [[orpiment]], which was an important yellow-orange pigment. | ||
| + | |||
| + | In the solid state, arsenic trisulfide has a layer structure analogous to that of [[arsenic trioxide]].<ref>{{Greenwood&Earnshaw1st|pages=674–77}}.</ref> | ||
==References== | ==References== | ||
Revision as of 12:09, 23 December 2010
| Arsenic trisulfide | |
|---|---|
| Identifiers | |
| InChI | InChI=1/As2S3/c3-1-5-2-4 |
| Standard InChI | InChI=1S/As2S3/c3-1-5-2-4 |
| CAS number | [] |
| ChemSpider | |
| Properties[1] | |
| Chemical formula | As2S3 |
| Molar mass | 246.04 g mol−1 |
| Appearance | orange solid |
| Density | 3.43 g cm−3 |
| Melting point |
300 °C |
| Boiling point |
707 °C |
| Solubility in water | insoluble |
| Structure[2] | |
| Space group | P21/n |
| Hazards[3] | |
| EU index number | 033-002-00-5 |
| GHS pictograms |  
|
| GHS signal word | DANGER |
| GHS hazard statements | H300, H331, H400, H411 |
| Related compounds | |
| Other anions | Arsenic trioxide Arsenic triselenide |
| Other cations | Phosphorus trisulfide Antimony trisulfide Bismuth sulfide |
| Other compounds | Tetraarsenic tetrasulfide |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
Arsenic trisulfide is the commonest sulfide of arsenic. It occurs naturally as the mineral orpiment, which was an important yellow-orange pigment.
In the solid state, arsenic trisulfide has a layer structure analogous to that of arsenic trioxide.[4]
References
- ↑ CRC Handbook of Chemistry and Physics, 62nd ed.; Weast, Robert C., Ed.; CRC Press: Boca Raton, FL, 1981; p B-80. ISBN 0-8493-0462-8.
- ↑ Mullen, D. J. E.; Nowacki, W Refinement of the crystal structures of realgar, AsS, and orpiment, As2S3. Z. Kristallogr. 1972, 136, 48–65.
- ↑ Index no. 033-002-00-5 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 427.
- ↑ Greenwood, Norman N.; Earnshaw, A. Chemistry of the Elements; Pergamon: Oxford, 1984; pp 674–77. ISBN 0-08-022057-6.
External links
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See also the corresponding article on Wikipedia. |
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