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Sigma-Aldrich

Gold(III) chloride hydrate

~52% Au basis

Synonym(s):

Auric chloride, Chloroauric acid, Hydrogen tetrachloroaurate(III) hydrate, Tetrachloroauric(III) acid

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About This Item

Linear Formula:
HAuCl4 · aq
CAS Number:
Molecular Weight:
339.79 (anhydrous basis)
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.23

Quality Level

form

powder

concentration

~52% Au

color

brown

density

3.9 g/mL at 25 °C

SMILES string

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

InChI

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

InChI key

OVJUDSKPNIBLOO-UHFFFAOYSA-K

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General description

Gold(III) chloride hydrate is a yellowish crystalline solid and a powerful oxidizing agent widely used in gold electroplating, catalyst synthesis, and organic transformations.

Application

Gold(III) chloride hydrate can be used:
  • As a precursor to synthesize blue-emitting gold nanoclusters.
  • As a dopant to enhance the optoelectronic properties of single-walled carbon nanotubes.
  • To produce composite colloids of gold and polypyrrole.

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

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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Highly efficient doping of carbon nanotube films with chloroauric acid by dip-coating
Orysia T. Zaremba, et al.
Materials Science and Engineering, B, 278, 115648-115648 (2022)
Reaction of pyrrole and chlorauric acid a new route to composite colloids
Matthew C Henry, et al.
Journal of the Electrochemical Society, 148, D155-D155 (2001)
Blue emitting gold nanoclusters templated by poly-cytosine DNA at low pH and poly-adenine DNA at neutral pH
AC Thomas, et al.
Chemical Communications (Cambridge, England), 48, 6845-6847 (2012)

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