G4022

Gold(III) chloride trihydrate

ACS reagent, ≥49.0% Au basis

• Synonym(s): Hydrogen tetrachloroaurate(III), Tetrachloroauric(III) acid
• Linear Formula: HAuCl₄ · 3H₂O
• CAS Number: 16961-25-4
• Molecular Weight: 393.83
• EC Number: 240-948-4
• MDL number: MFCD00149904
• UNSPSC Code: 12352302
• PubChem Substance ID: 329799921
• NACRES: NA.21

Properties

• 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

Description

Application

Gold Catalysts — 21st Century ′Gold Rush′

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.

Safety Information

• pictograms: GHS08,GHS05,GHS07,GHS09
• signalword: Danger
• hcodes: H290,H302,H314,H373,H411
• pcodes: P260 - P273 - P280 - P303 + P361 + P353 - P305 + P351 + P338 - P314
• 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: 8B - Non-combustible corrosive hazardous materials
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable