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Sigma-Aldrich

Gold(III) chloride hydrate

99.995% trace metals 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:
27988-77-8
Molecular Weight:
339.79 (anhydrous basis)
EC Number:
240-948-4
MDL number:
MFCD00149903
UNSPSC Code:
12352302
PubChem Substance ID:
24855362
NACRES:
NA.23

assay

99.995% trace metals basis

form

crystals and lumps

composition

Degree of hydration, ~3

reaction suitability

reagent type: catalyst
core: gold

technique(s)

ELISA: suitable

impurities

≤55.0 ppm Trace Metal Analysis

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 (HAuCl4) can be used as a precursor to synthesize goldnanoparticles and p-type dopant for most conjugated organic molecules. Thedoping leads to the expansion of crystalline lattice and enhances conductivitydue to the formation of a large number of chargecarriers.

Application

Gold(III) chloride hydrate can be used to prepare TiO2-supported Au-based photocatalyst by deposition-precipitation with urea. These catalysts show a higher amount and production rate of hydrogen via a water-splitting reaction.

Conjugate polythiophene films can be prepared by the solution-doping method using HAuCl4 as a dopant. These highly conductive polymer films can be applied in the field of vapor sensing and organic electronics.

HAuCl4 can be reduced to prepare gold nanoparticles by using different reducing agents like NaBH4, glucose, and poly (propylene imine) dendrimer.

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Danger

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

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Certificates of Analysis (COA)

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Bo Chuan Huang et al.
Scientific reports, 9(1), 7589-7589 (2019-05-22)
Shewanella oneidensis MR-1, a bioelectricity generating bacterium, is broadly used in bioremediation, microbial fuel cell and dissimilatory reduction and recovery of precious metals. Herein, we report for the first time that photo induction as a trigger to stimulate gold nanoparticles
Ligand-induced gold nanocrystal superlattice formation in colloidal solution.
Lin XM, et al.
Chemistry of Materials, 11(2), 198-202 (1999)
Fink, J. et al.
Chemistry of Materials, 10, 922-922 (1998)
Motao Zhu et al.
ACS nano, 14(3), 3703-3717 (2020-02-15)
Engineered nanoparticles could trigger inflammatory responses and potentiate a desired innate immune response for efficient immunotherapy. Here we report size-dependent activation of innate immune signaling pathways by gold (Au) nanoparticles. The ultrasmall-size (<10 nm) Au nanoparticles preferentially activate the NLRP3
Murat A Yokus et al.
Biosensors & bioelectronics, 153, 112038-112038 (2020-01-29)
Comprehensive metabolic panels are the most reliable and common methods for monitoring general physiology in clinical healthcare. Translation of this clinical practice to personal health and wellness tracking requires reliable, non-invasive, miniaturized, ambulatory, and inexpensive systems for continuous measurement of
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