Description

Ammonium Tetrachloroaurate is a key inorganic gold compound, primarily used as a high-purity precursor in the synthesis of gold nanomaterials and catalysts. Its value lies in providing a soluble and reactive source of gold(III) ions, which is critical for controlled deposition and nanoparticle formation. This product is essential for industries focused on advanced materials, electronics, and specialized chemical synthesis where precise gold content and purity are paramount.

Application

• Gold Nanomaterial Synthesis: A fundamental precursor for the production of gold nanoparticles, nanorods, and other nanostructures used in diagnostics, sensors, and catalysis.
• Electroplating & Surface Coating: Used in specialized electroplating baths to deposit thin, high-purity gold films on electronic components and connectors.
• Catalyst Preparation: Serves as a starting material for preparing supported gold catalysts used in chemical oxidation processes and fuel cell applications.
• Chemical Vapor Deposition (CVD): Acts as a gold source in CVD processes for creating ultra-thin gold layers on semiconductors and optical devices.
• Research & Development: Utilized in academic and industrial R&D for exploring new gold-based compounds, materials, and catalytic systems.
• Glass & Ceramic Coloring: Employed to produce high-quality ruby glass and for imparting purple or red hues in specialty ceramics and artisanal glassware.

Basic Information

Product Name	Ammonium Tetrachloroaurate
CAS No.	31113-23-2
Molecular Formula	NH4[AuCl4]
Molecular Weight	382.79 g/mol
Synonyms	Ammonium Tetrachloroaurate(III); Ammonium Chloroaurate; Ammonium Gold(III) Chloride; Ammonium Auric Chloride; Gold Ammonium Chloride; Ammonium Tetrachloroauric Acid; Tetrachloroauric Acid Ammonium Salt; NH4AuCl4
EINECS	Contact for details

Quality Control

Our Ammonium Tetrachloroaurate is manufactured under strict quality 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 management system is designed to meet the rigorous demands of advanced material synthesis and research applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent decomposition.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Complies
Assay (Au content)	≥ 51.0%
Purity (HPLC)	≥ 99.0%
Solubility (in Water)	Clear, yellow solution
Chloride Content	~47.0% (Theoretical)
Insoluble Matter	≤ 0.1%

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