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398462

Sigma-Aldrich

Gold(III) hydroxide

Synonym(s):

Gold Trihydroxide, Gold trihydrate

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About This Item

Linear Formula:
Au(OH)3
CAS Number:
1303-52-2
Molecular Weight:
247.99
EC Number:
215-120-0
MDL number:
MFCD00046173
UNSPSC Code:
12352302
PubChem Substance ID:
24864752
NACRES:
NA.23

Assay

79-81.4% Au basis (after reduction with hydrazine dihydrate, gravimetric)

form

powder

SMILES string

O[Au](O)O

InChI

1S/Au.3H2O/h;3*1H2/q+3;;;/p-3

InChI key

WDZVNNYQBQRJRX-UHFFFAOYSA-K

Application

Synthesis of gold hydroxide complexes with N-heterocyclic carbene has been reported. A variety of perfluoroaryls, N-heterocyclic and alkynyl compounds may be synthesized by reacting gold(III) hydroxide with C–H and N–H compounds and arylboronic acids. Potassium aurate may be prepared by heating auric hydroxide with conc. KOH. 3

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCP0405
MKCJ3152
MKCG6364
MKBW6738V
MKBN8340V

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Synthesis of gold hydroxide complex bearing N-heterocyclic carbene was reported.
Gaillard S, et al.
Chemical Communications (Cambridge, England), 46, 2742-2744 (2010)
Cyclometallated gold(III) hydroxides as versatile synthons for Au?N, Au?C complexes and luminescent compounds.
Rosca DA, et al.
Chemical Communications (Cambridge, England), 48, 7247-7249 (2012)

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