Description

Hydrogen Tetrachloroaurate(III) Tetrahydrate is a high-purity inorganic gold compound, primarily used as a critical precursor in advanced materials synthesis and electronics manufacturing. Its consistent quality and high gold content make it an essential raw material for applications requiring precise gold deposition and controlled reactivity. This product is vital for research institutions, electronics manufacturers, and specialty chemical producers involved in nanotechnology, catalysis, and surface coating technologies.

Application

• Electronics & Semiconductor Manufacturing: Key precursor for gold electroplating baths and the production of conductive inks and pastes for printed electronics.
• Nanotechnology & Materials Science: Essential starting material for synthesizing gold nanoparticles (AuNPs), nanowires, and other nanostructures with controlled size and morphology.
• Catalysis Research: Used in the preparation of supported gold catalysts for oxidation reactions and other heterogeneous catalytic processes.
• Surface Coating & Decoration: Employed in glass and ceramic gliding, as well as for decorative gold plating on high-value items.
• Analytical Chemistry: Serves as a standard or reagent in analytical methods for gold determination and other spectroscopic applications.
• Medical Research & Diagnostics: Used in the development of biosensors, immunoassays, and other diagnostic platforms leveraging gold's unique optical properties.

Basic Information

Product Name	Hydrogen Tetrachloroaurate(III) Tetrahydrate
CAS No.	1303-50-0
Molecular Formula	HAuCl4 · 4H2O
Molecular Weight	411.85 g/mol (Anhydrous basis: 339.79 g/mol)
Synonyms	Chloroauric Acid Tetrahydrate; Tetrachloroauric Acid Tetrahydrate; Gold(III) Chloride Hydrochloride Tetrahydrate; Auric Chloride Hydrochloride Tetrahydrate; Hydrogen Tetrachloroaurate; HAuCl4·4H2O
EINECS	215-122-1

Quality Control

Our Hydrogen Tetrachloroaurate(III) Tetrahydrate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure it meets stringent specifications for purity, gold content, and impurity profiles. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, chloride content, and trace metal impurities. We adhere to relevant industry standards to guarantee batch-to-batch consistency and reliability for your critical processes.

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, moisture, or light should be avoided to prevent decomposition. Keep away from incompatible materials such as strong reducing agents and bases.

Specification

Item	Specification
Appearance	Yellow to orange crystalline solid
Identification (IR)	Conforms to standard
Assay (Au content)	≥ 47.8 % (as Au)
Purity (HAuCl4·4H2O)	≥ 99.0 %
Chloride Content	Conforms to theoretical
Insoluble Matter	≤ 0.01 %
Trace Metals (ICP-MS)	≤ 10 ppm (individual)

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