Description

Gold Sodium Thiosulfate is a specialized inorganic gold complex, also known as sodium gold thiosulfate. This compound is valued for its role as a stable and soluble source of gold ions, which is critical for applications requiring precise gold deposition or catalytic activity. It serves key functions in the electronics, materials science, and specialized chemical synthesis industries where controlled gold integration is paramount.

Application

• Electroplating & Surface Finishing: Used as a gold source in specialized electroplating baths for electronic connectors, semiconductors, and decorative finishes.
• Catalyst Preparation: Serves as a precursor for synthesizing gold-based catalysts used in chemical reactions and pollution control systems.
• Nanomaterial Synthesis: A key reagent in the production of gold nanoparticles and other advanced nanomaterials for research and industrial applications.
• Photographic Industry: Employed in certain toning and fixing processes in specialized photographic and imaging techniques.
• Glass & Ceramic Coloring: Used to impart a ruby-red or pink color to glass, ceramics, and enamels.
• Medical & Diagnostic Research: Investigated for use in medical research, including potential applications in diagnostics and as a reagent in histology.

Basic Information

Product Name	Gold Sodium Thiosulfate
CAS No.	10210-36-3
Molecular Formula	Na3[Au(S2O3)2] • 2H2O
Molecular Weight	526.18 g/mol (Dihydrate)
Synonyms	Sodium Gold Thiosulfate; Sodium Aurothiosulfate; Gold Trisodium Thiosulfate; Aurothiosulfuric Acid Trisodium Salt; Sodium Aurothiosulphate; Gold(I) Sodium Thiosulfate; Trisodium Dithiosulfatoaurate(I)
EINECS	233-511-6

Quality Control

Our Gold Sodium Thiosulfate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profiles, and physical characteristics is provided with every shipment to guarantee it meets your specific application requirements.

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 light-sensitive; containers must be kept tightly sealed after opening to minimize exposure to air and moisture.

Specification

Item	Specification
Appearance	White to pale yellow crystalline powder
Identification (IR)	Conforms
Assay (Au content)	≥ 36.0 %
Purity (HPLC)	≥ 98.0 %
Water Content (KF)	≤ 7.0 %
Chloride (Cl)	≤ 0.1 %
Sulfate (SO4)	≤ 0.5 %
Insoluble Matter	≤ 0.5 %

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