Gold(III) hydroxide


Gold(III) hydroxide[1]
Gold(III) hydroxide.png
Systematic IUPAC name
Gold(3+) trihydroxide[2]
Other names
λ3-Auranetriol[citation needed]

Auric acid[citation needed]
Gold hydroxide[citation needed]

Gold trihydroxide[citation needed]
  • 1303-52-2 checkY
3D model (JSmol)
  • Interactive image
  • Interactive image
  • 21170948 ☒N
ECHA InfoCard 100.013.746 Edit this at Wikidata
EC Number
  • 215-120-0
  • 11536100
  • 8YE7R9L22G checkY
  • DTXSID2061646 Edit this at Wikidata
  • InChI=1S/Au.3H2O/h;3*1H2/q+3;;;/p-3 ☒N
  • O[Au](O)O
  • [OH-].[OH-].[OH-].[Au+3]
Molar mass 247.9886 g mol−1
Appearance Vivid, dark yellow crystals
Trigonal dihedral at Au
Safety data sheet Oxford
Irritant Xi
R-phrases (outdated) R36/37/38
S-phrases (outdated) S26, S37/39
Related compounds
Related compounds
Gold(III) chloride

Copper(II) hydroxide
Gold(III) oxide

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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]


Gold(III) hydroxide reacts with ammonia to produce gold fulminate, an explosive compound.[5]


  1. ^ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: CRC Press, pp. 4–59, ISBN 0-8493-0594-2
  2. ^ "CID 11536100 - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 26 October 2006. Identification and Related Records. Retrieved 6 October 2011.
  3. ^[permanent dead link]
  4. ^ Walter Schultze, J.; Osaka, Tetsuya; Datta, Madhav (2002-09-05). Electrochemical Microsystem Technologies. ISBN 9780203219218.
  5. ^ Perry, Dale, ed. (1995). Handbook of Inorganic Compounds. p. 184. ISBN 9780849386718.