Description

Chloroauric Acid Hydrate is a vital inorganic gold compound, serving as the primary precursor for the synthesis of gold nanoparticles and other gold-based materials. Its high purity and consistent quality are critical for ensuring the performance and reproducibility of advanced materials in research and industrial applications. This product is essential for manufacturers and R&D laboratories in the electronics, catalysis, nanotechnology, and specialty chemical sectors.

Application

• Gold Nanoparticle Synthesis: The most common starting material for producing colloidal gold nanoparticles of various sizes and shapes for diagnostics, sensors, and catalysis.
• Electroplating & Gilding: Used in electroplating baths for depositing thin, uniform, and highly conductive gold films on electronic components and jewelry.
• Catalyst Preparation: A key precursor for manufacturing supported gold catalysts used in chemical synthesis, pollution control, and fuel cell applications.
• Materials Research: Fundamental reagent for developing novel gold-containing compounds, nanomaterials, and conductive inks for printed electronics.
• Glass & Ceramic Coloring: Imparts a rich ruby-red color (cranberry glass) to specialty glassware and ceramic glazes.
• Analytical Chemistry: Employed as a standard and reagent in various analytical techniques for gold quantification and detection.

Basic Information

Product Name	Chloroauric Acid Hydrate
CAS No.	27988-77-8
Molecular Formula	HAuCl4·xH2O
Molecular Weight	411.85 (Anhydrous basis)
Synonyms	Hydrogen tetrachloroaurate(III) hydrate; Tetrachloroauric acid hydrate; Auric chloride hydrate; Gold(III) chloride hydrate; Gold chloride hydrate; Hydrogen tetrachloroaurate; HAuCl4 hydrate
EINECS	Contact for details

Quality Control

Our Chloroauric Acid Hydrate is produced under stringent quality management protocols to ensure batch-to-batch consistency and high chemical purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as gold content, assay, and impurity profiles. Our quality systems are designed to meet the exacting requirements of advanced material synthesis and electronic applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to air or light may affect product quality and stability.

Specification

Item	Specification
Appearance	Yellow to orange crystalline solid
Identification (IR)	Complies
Assay (Au content)	≥ 47.8%
Solubility (in Water)	Clear, yellow solution
Impurities (ICP-OES)	Heavy metals (as Pb): ≤ 50 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.