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Sigma-Aldrich

Gold(I) chloride

99.9% trace metals basis

Synonym(s):

Aurous chloride, Gold monochloride

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About This Item

Linear Formula:
AuCl
CAS Number:
Molecular Weight:
232.42
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.23

Quality Level

Assay

99.9% trace metals basis

form

powder

reaction suitability

reagent type: catalyst
core: gold

impurities

≤1500 ppm Trace Metal Analysis

mp

289 °C (dec.) (lit.)

density

7.57 g/mL at 25 °C (lit.)

SMILES string

[Cl-].[Au+]

InChI

1S/Au.ClH/h;1H/q+1;/p-1

InChI key

FDWREHZXQUYJFJ-UHFFFAOYSA-M

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General description

Gold(I) chloride is a yellow crystalline solid with a monoclinic structure. It sublimes at elevated temperatures. Gold(III)chloride is thermally decomposed to produce gold(I) chloride. It is widely used as a precursor to prepare gold nanoparticles and catalyst systems.

Application

Gold(I) chloride can be used:
  • As a precursor to prepare magnetic nanocatalyst systems for various organic transformations. For example, Fe3O4@SiO2-P–AuCl can be used as a catalyst for one-pot reductive amination of aldehydes and ketones with various aromatic amines.
  • As a starting material to synthesize Au-containing complexes for application in the field of drug delivery, solar cells, sensors, and organic synthesis.
  • As a precatalyst for stereoselective cycloisomerization of α-thioallenes to 2,5-dihydrothiophenes via C-S bond formation.
  • As a catalyst for the conversion of siloxy cyclohexadienes, to the corresponding1,2- and 1,3-cyclohexenones via Gold-Catalyzed Cycloisomerization.

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Skin Corr. 1B - Skin Sens. 1

Storage Class Code

8A - Combustible corrosive hazardous materials

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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Au-containing coordination polymers based on polyphosphorus ligand complexes
Helena Brake, et al.
Inorganic Chemistry, 60, 6027-6039 (2021)
The First Gold-Catalyzed C?S Bond Formation: Cycloisomerization of ?-Thioallenes to 2,5-Dihydrothiophenes
Nobuyoshi Morita
Angewandte Chemie (International Edition in English) (2006)
Gold-Catalyzed Cycloisomerization of Siloxy Enynes to Cyclohexadienes
Liming Zhang and Sergey A. Kozmin
Journal of the American Chemical Society, 126, 11806-11807 (2004)
Based on magnetic nanoparticles: Gold reusable nanomagnetic catalysts in organic synthesis
Mosstafa Kazemi
Synthetic Communications, 50, 2079-2094 (2020)
Víctor S Carriel et al.
The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society, 59(3), 270-277 (2011-03-08)
For the histopathologic diagnosis of melanocytic lesions, it could be necessary to identify the melanin pigment because its visualization is unspecific with hematoxylin-eosin (HE). The Fontana-Masson (FM) technique is used in histopathology in this type of lesion, which allows the

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