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Key Documents

G4022

Sigma-Aldrich

Gold(III) chloride trihydrate

ACS reagent, ≥49.0% Au basis

Synonym(s):

Hydrogen tetrachloroaurate(III), Tetrachloroauric(III) acid

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About This Item

Linear Formula:
HAuCl4 · 3H2O
CAS Number:
Molecular Weight:
393.83
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

form

powder, crystals or chunks

reaction suitability

reagent type: catalyst
core: gold

concentration

≥49.0% Au

impurities

≤0.1% Insoluble in ether

cation traces

alkalies and other metals (as sulfates): ≤0.2%

storage temp.

2-8°C

SMILES string

Cl[H].[H]O[H].[H]O[H].[H]O[H].Cl[Au](Cl)Cl

InChI

1S/Au.4ClH.3H2O/h;4*1H;3*1H2/q+3;;;;;;;/p-3

InChI key

XYYVDQWGDNRQDA-UHFFFAOYSA-K

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Application

Gold(III) chloride trihydrate can be used as a gold precursor salt for the production of gold nanoparticles (AuNP) using various reducing agents.
It can also be used as a catalyst in the following processes:
  • HAuCl4 3H2O inPEG 400 is used to synthesize spirochromene derivatives via a one-pot three-component reaction of isatins/acenaphthoquinone, active methylene compounds, and cyclic 1,3-diketones/4-hydroxycoumarin.      
  • Au/CeO2 catalytic system is used in chemoselective oxidation of aromatic/aliphatic alcohols to corresponding carbonyl compounds.      
  • Used in the synthesis of allylnaphthalenes by ring-opening of 1,4-epoxy-1,4-dihydronaphthalenes with allyltrimethylsilane.

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B - STOT RE 2 Oral

Target Organs

Kidney

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Synthesis and stability of fluorescent gold nanoparticles by sodium borohydride in the presence of mono-6-deoxy-6-pyridinium-?-cyclodextrin chloride
Male KB, et al.
The Journal of Physical Chemistry C, 112(2), 443-451 (2008)
Sang Hui Jun et al.
Journal of nanoscience and nanotechnology, 14(8), 6202-6208 (2015-05-06)
Traditional medicinal plants possess diverse active constituents for exerting their biological activities. Recently, the innovative applications of plant extracts have revealed their promise as 'green' reducing agents for the reduction of metal ions during the synthesis of metallic nanoparticles. Herein
Gold (III) chloride (HAuCl4.3H2O) in PEG: A new and efficient catalytic system for the synthesis of functionalized spirochromenes
Kidwai M, et al.
Applied Catalysis A: General, 425, 35-43 (2012)
Efficient chemoselective alcohol oxidation using oxygen as oxidant. Superior performance of gold over palladium catalysts
Abad A, et al.
Tetrahedron, 62(28), 6666-6672 (2006)
Regioselective Gold-Catalyzed Allylative Ring Opening of 1, 4-Epoxy-1, 4-dihydronaphthalenes
Sawama Y, et al.
Synlett, 2010(14), 2151-2155 (2010)

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