Gold(III) hydroxide
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| Names | |
|---|---|
| Systematic IUPAC name
Gold(3+) trihydroxide[2] | |
| Other names
λ3-Auranetriol Auric acid | |
| Identifiers | |
1303-52-2  | |
| ChemSpider | 21170948  |
| EC Number | 215-120-0 |
| Jmol interactive 3D | Image Image |
| PubChem | 11536100 |
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| Properties | |
| AuH 3O 3 | |
| Molar mass | 247.9886 g mol−1 |
| Appearance | Vivid, dark yellow crystals |
| Structure | |
| Trigonal dihedral at Au | |
| Hazards | |
| Safety data sheet | Oxford |
| EU classification (DSD) |
 Xi |
| R-phrases | R36/37/38 |
| S-phrases | S26, S37/39 |
| Related compounds | |
| Related compounds |
Gold(III) chloride |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| verify (what is ?) | |
| Infobox references | |
Gold(III) hydroxide, gold trihydroxide, or gold hydroxide is an inorganic compound, a hydroxide of gold, with formula Au(OH)3. It is also called auric acid with formula H3AuO3. It is easily dehydrated above 140 °C to gold(III) oxide. Salts of auric acid are termed aurates.
Gold hydroxide is used in medicine, porcelain making, gold plating, and daguerrotypes. Gold hydroxide deposited on suitable carriers can be used for preparation of gold catalysts.[3]
Gold hydroxide is a product of electrochemical corrosion of gold metalization subjected to moisture and positive electric potential; it is one of the corrosion failure modes of microelectronics. Voluminous gold hydroxide is produced from gold metalization; after the layer grows thick it may spall, and the conductive particles may cause short circuits or leakage paths. The decreased thickness of the gold layer may also lead to an increase in its electrical resistance, which can also lead to electrical failure.[4]
References
- ↑ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: CRC Press, pp. 4–59, ISBN 0-8493-0594-2
- ↑ "CID 11536100 - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 26 October 2006. Identification and Related Records. Retrieved 6 October 2011.
- ↑ http://www.cata.ucl.ac.be/printed/p100-idakiev.doc
- ↑ http://books.google.com/books?id=7iXwf1axhC0C&pg=PA341&dq=%22gold+hydroxide%22&lr=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&num=50&as_brr=3&cd=26#v=onepage&q=%22gold%20hydroxide%22&f=false
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