MilliporeSigma
All Photos(3)

Documents

254169

Sigma-Aldrich

Gold(III) chloride hydrate

99.995% trace metals basis

Sign Into View Organizational & Contract Pricing

Synonym(s):
Auric chloride, Chloroauric acid, Hydrogen tetrachloroaurate(III) hydrate, Tetrachloroauric(III) acid
Linear Formula:
HAuCl4 · aq
CAS Number:
Molecular Weight:
339.79 (anhydrous basis)
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

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

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
520918G4022484385
form

crystals and lumps

form

crystals and lumps

form

powder, crystals or chunks

form

liquid

impurities

≤55.0 ppm Trace Metal Analysis

impurities

≤1000.0 ppm Trace Metal Analysis

impurities

≤0.1% Insoluble in ether

impurities

≤150.0 ppm Trace Metal Analysis

density

3.9 g/mL at 25 °C

density

-

density

-

density

1.637 g/mL at 25 °C

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

composition

Degree of hydration, ~3

composition

Au, 48.5-50.25%

composition

-

composition

Au, 17 wt. %

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.

Signal Word

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 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

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’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

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
Fink, J. et al.
Chemistry of Materials, 10, 922-922 (1998)
Ligand-induced gold nanocrystal superlattice formation in colloidal solution.
Lin XM, et al.
Chemistry of Materials, 11(2), 198-202 (1999)
The crystal structure of gold(III) chloride.
Clark ES, et al.
Acta Crystallographica, 11, 284-288 (1958)
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

Articles

Plasmonic nanoparticles have unique optical properties that can be tailored to suit a variety of applications in the biotechnology1–8 and electronics9–16 industries.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service