254169

Gold(III) chloride hydrate

99.995% trace metals basis

• Synonym(s): Auric chloride, Chloroauric acid, Hydrogen tetrachloroaurate(III) hydrate, Tetrachloroauric(III) acid
• 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

Properties

• Quality Level: 200
• 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

Description

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.

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: 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