High-Purity Gold(I) Sulfide from Aure Chemical – Your Trusted Source
Gold(I) sulfide, Au₂S, CAS No. 1303-60-2, is a stable and important gold(I) compound widely used as a precursor in organometallic chemistry, materials science, and catalysis research. Supplied by Aure Chemical as dark brown to black amorphous or finely crystalline powder with high gold content (approximately 91–92% Au), this insoluble solid exhibits excellent thermal stability and serves as a clean, halide-free source of Au(I) or Au(0) species upon reduction or thermal decomposition. It is employed in the synthesis of gold-thiolate complexes, preparation of gold-sulfur supported catalysts, generation of gold nanoparticles or clusters with sulfur interfaces, and in studies of gold sulfide thin films or surface-modified materials. Its Au–S bonding motif is particularly relevant for understanding gold-thiol self-assembled monolayers, SERS substrates, and sulfur-modified gold catalysis. Aure Chemical provides controlled particle size, high purity, and secure gold sourcing to ensure batch reproducibility and optimal performance in research and specialized applications worldwide.
Basic Information of Gold(I) Sulfide
Aure Chemical supplies Gold(I) Sulfide as a premium Au(I) precursor with verified high gold content and exceptional purity for organometallic and materials applications.
| CAS No. | 1303-60-2 |
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| EC No. | 215-123-7 |
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| Chemical Formula | Au₂S |
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| Molecular Weight | 425.93 g/mol |
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| Appearance | Dark brown to black amorphous or finely crystalline powder |
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| Odor | Odorless |
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| Melting point | Decomposes >200 °C to Au + S |
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| Boiling point | Not applicable (decomposes) |
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| Density | approx. 9.0–9.5 g/cm³ |
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| Solubility | Insoluble in water and most organic solvents; soluble in aqua regia or hot concentrated acids |
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| Nature (hazards) | May cause respiratory irritation, skin and eye irritation, harmful if inhaled as dust, toxic to aquatic life |
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| RIDADR | Not regulated (non-hazardous for transport under standard classifications; consult SDS for specific handling) |
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| Chemical Structure |  |
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Aure Chemical offers customizable options including purity grades, particle size distribution, and supported forms (e.g., Au₂S on carbon or oxide) to match your catalysis, reduction, or material requirements.
Primary Applications of Gold(I) Sulfide
Gold(I) Sulfide serves as a unique Au(I)–S precursor, offering distinct reactivity and stability in sulfur-containing gold systems.
Organometallic Gold-Sulfur Complex Synthesis
Acts as precursor for preparing gold(I) thiolate clusters, polymers, and molecular complexes relevant to self-assembled monolayers and luminescent materials.
Supported Gold-Sulfur Catalyst Preparation
Used to deposit Au–S species on supports for selective oxidation, hydrogenation, and CO removal catalysis with sulfur-modified gold surfaces.
Gold Nanoparticle & Cluster Synthesis
Enables controlled reduction or decomposition to generate Au nanoparticles or clusters with sulfur interfaces for plasmonics, sensing, and biomedical applications.
Thin-Film & Surface Modification
Serves as a source for gold sulfide thin films or surface layers in microelectronics, sensors, and plasmonic devices via thermal or chemical processing.
Advanced Materials Research
Employed in studies of gold sulfide stability, Au–S bonding, mixed-metal sulfides, and functional coatings requiring gold-sulfur interactions.
Chemical & Materials Synthesis
Provides a clean Au(I) source in non-aqueous or solid-state reactions where chloride-free gold introduction is desirable.
Why Choose Aure Chemical for Your Gold(I) Sulfide Supply?
Partner with Aure Chemical for Gold(I) Sulfide to benefit from superior stability, customization flexibility, and secure precious metal supply tailored to your gold-sulfur applications.
High Gold Content & Purity
Precise analytical control ensures consistent Au content, optimal crystallinity, and high active surface area for maximum performance.
Custom Material Specifications
Tailored purity, particle morphology, surface area, and supported variants to perfectly align with your catalysis, reduction, or materials application.
Consistent Batch-to-Batch Reproducibility
Rigorous testing (ICP, XRD, BET, activity assays) guarantees low variation and predictable performance during scale-up and production.
Secure Gold Supply Chain
Responsible sourcing, strategic inventory management, and transparent pricing mitigate volatility and ensure long-term availability.
Technical & Regulatory Support
Expert team provides guidance on reduction protocols, catalyst activation, performance optimization, and full documentation (COA, REACH, SDS) for seamless integration.
Hazards Classification
GHS Classification: Skin Irritation (Category 2); Eye Irritation (Category 2A); Specific Target Organ Toxicity, Single Exposure (respiratory) (Category 3); Aquatic Chronic (Category 3)
Hazard Statements: H315: Causes skin irritation; H319: Causes serious eye irritation; H335: May cause respiratory irritation; H413: May cause long lasting harmful effects to aquatic life
UN Number: Not regulated
Hazard Class: Not classified as hazardous for transport
Packing Group: Not applicable
GHS07: Exclamation mark (irritant, respiratory)
GHS09: Environment (aquatic hazard)
