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HS Code |
333364 |
| Product Name | Hydrogen Tetrachloroaurate(III) Trihydrate |
| Chemical Formula | HAuCl4·3H2O |
| Molar Mass | 393.83 g/mol |
| Appearance | Yellow-orange crystalline solid |
| Solubility In Water | Highly soluble |
| Cas Number | 16961-25-4 |
| Purity | Typically >99% |
| Melting Point | 30°C (decomposes) |
| Density | 2.9 g/cm³ |
| Storage Conditions | Store in a cool, dry place, keep container tightly closed |
As an accredited Hydrogen Tetrachloroaurate(III) Trihydrate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle, sealed cap, 25g label; includes hazard symbols, CAS number, and “Hydrogen Tetrachloroaurate(III) Trihydrate” prominently displayed. |
| Shipping | Hydrogen Tetrachloroaurate(III) Trihydrate should be shipped in tightly sealed containers, protected from moisture and incompatible materials. It is classified as hazardous, requiring appropriate labeling and documentation. Ship via approved carriers following regulations for corrosive and oxidizing substances. Personal protective equipment is recommended when handling during shipping and receiving. |
| Storage | Hydrogen Tetrachloroaurate(III) Trihydrate should be stored in a tightly sealed container, away from light, moisture, and incompatible substances such as strong reducing agents and organic materials. Store in a cool, dry, well-ventilated area, preferably within a chemical storage cabinet specifically designated for corrosive or oxidizing chemicals. Clearly label the container and avoid exposure to heat and direct sunlight. |
Applications of Hydrogen Tetrachloroaurate(III) Trihydrate in Industrial ManufacturingAs a direct manufacturer with decades of experience in gold-based chemical synthesis, we understand the critical role Hydrogen Tetrachloroaurate(III) Trihydrate plays across several precise industrial sectors. Below we detail practical application scenarios, highlighting compliance benchmarks, formulation practices, integration points in production lines, and the tangible end products that global customers rely on. 1. Gold Plating for Electronics ManufacturingElectronics producers rely on acid gold plating baths containing Hydrogen Tetrachloroaurate(III) Trihydrate to deposit controlled, high-purity gold layers on connectors, printed circuit boards, and semiconductor surfaces. This process optimizes conductivity and corrosion resistance in high-frequency, low-voltage, and signal-critical applications, where precise bath composition and traceability determine batch acceptance. Gold bath recipes require careful adaptation to substrate type and required thickness, with original bath concentrations directly affecting deposit quality in automated plating lines. Industry compliance standards
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2. Catalyst Production for Vinyl Acetate Monomer (VAM) SynthesisManufacturers producing catalysts for VAM plants utilize Hydrogen Tetrachloroaurate(III) Trihydrate as a gold precursor during catalyst preparation. Gold serves a critical function in supported catalyst systems used to enable ethylene to react with acetic acid and oxygen, achieving selectivity and conversion rates demanded by large-scale VAM operations. Standard operating procedures demand low residual chloride in final catalysts and precise gold dispersion, requiring exact addition of the starting gold material during impregnation and calcination steps. Industry compliance standards
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3. Reference Standards and Reagent Manufacturing for Analytical LaboratoriesProducers of analytical and diagnostic reagents use gold compounds as traceable standards in calibration solutions and high-purity analytical grade kits. Hydrogen Tetrachloroaurate(III) Trihydrate serves as the primary source for reference gold ion solutions, central for instrument validation in laboratories running AAS, ICP-OES, and related trace metals analysis. Batch-to-batch consistency, documentation for regulatory audits, and clear traceability to certified reference material (CRM) lots are mandatory in this sensitive segment. Industry compliance standards
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4. Manufacturing of Gold Nanoparticle Colloids for Medical DiagnosticsManufacturers fabricating colloidal gold nanoparticles for immunodiagnostic test kits employ Hydrogen Tetrachloroaurate(III) Trihydrate as the primary gold source. This application requires extremely pure and consistent gold content since particle size, surface charge, and conjugation stability directly influence diagnostic results. Strict adherence to biocompatibility, endotoxin limits, and trace impurity controls is required for downstream use in lateral flow assays, sensitive antigen detection, and imaging tools. Industry compliance standards
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5. Surface Modification Agents for Specialty Glass and CoatingsAdvanced glassmakers and specialty coating firms use gold chloride as a colorant and surface modifier to produce uniquely tinted glass and decorative ceramic glazes. Gold acts as a nucleator for colloidal coloring—yielding vibrant red or ruby tones through precise reduction and thermal processing. Automated dosing and temperature ramp-up controls are essential to achieve homogenous distribution, optical requirements, and long-term stability against environmental stressors in finished goods. Industry compliance standards
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6. Electrochemical Sensors and Biosensor Component ManufacturingSpecialized sensor producers use gold compounds to manufacture highly sensitive electrode coatings and functional layers in biosensors, glucose monitoring devices, and electrochemical detection chips. Hydrogen Tetrachloroaurate(III) Trihydrate provides a reproducible, high-purity gold source for electrodeposition or seed-mediated growth protocols, where material properties must satisfy electrical, biocompatibility, and adhesion criteria across stringent medical and industrial diagnostics markets. Industry compliance standards
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From decades of hands-on manufacturing, few chemicals offer the blend of precision, stability, and transformative potential as Hydrogen Tetrachloroaurate(III) Trihydrate, often recognized by its formula HAuCl4·3H2O. We bring forward our perspective as the original producer, not as an intermediary, so customers work with the minds married to the process every day on the plant floors. Gold-based chemistry sits at a legendary intersection of tradition, research, and next-generation technology; by keeping every process step in-house and under direct observation, we maintain not only consistency but deep understanding of property shifts with each batch.
Making HAuCl4·3H2O relies on much more than just mixing chemicals. The gold source, reaction atmosphere, equipment materials, and strict water control shape yield and purity. Over years, we have found that small variations in water molecules—those extra three in the trihydrate—change how the crystal forms, which directly affects application outcomes. Close monitoring of temperature swing and incoming gold quality supports tight control across lots. Our technicians don’t just check to meet a label; they troubleshoot, adjust, and record small wins and setbacks, all with the final application in mind.
Raw metals used in this process come only from certified, traceable sources suited for electronic-level processing. Our electrolytic dissolution techniques give us flexibility for both small pilot lots and larger commercial runs. Each batch shows a strong gold content, typically 49 percent by mass, and both heating regime and controlled recrystallization cut down on byproduct levels. Many downstream products hinge completely on this base quality—flaws here introduce rework, higher waste, and project delays further along the line. By holding every process variable under our direct command, troubleshooting shifts from guesswork into preventive action.
Much of the demand for Hydrogen Tetrachloroaurate(III) Trihydrate flows in from research groups, catalysis labs, medical instrument makers, and electronics fabrication shops. To produce the gold nanoparticles prized for their optical and catalytic properties, our material must deliver reliability again and again. Minute changes in residual acid content or a slight shift in hydration can turn a synthesis project from successful to defective. Over time, our closer collaboration with end users has taught us to watch for subtle crystal habit variation, moisture retention, and secondary impurity profiles. It’s not just about HAuCl4 content—it’s about understanding what makes one batch easier to disperse, filter, or reduce.
Colleagues in academic chemistry sometimes need smaller, more customized runs, where batch-to-batch reproducibility carries more weight than convenience alone. Larger industrial demand brings a different set of priorities: scalable consistency, shorter lead times, and technical troubleshooting during scale-up. Through these collaborations, we’ve discovered how much thoughtful upstream handling matters. Customers have brought us stories of batches from other suppliers kicking off needlelike crystals instead of the broad plates they expect, or anomalous color streaks during reactions. Our on-site analysis labs support rapid intervention when something seems off. Feedback cycles help adjust not just one run, but the procedures that dictate every future lot.
Hydrogen Tetrachloroaurate can show up on the market in multiple forms. As a manufacturer managing these differences on a daily basis, we see distinct needs for trihydrate and anhydrous types, as well as specialized blends. The trihydrate—our focus here—arrives as a bright yellow-orange crystalline powder, with moisture content not just tacked on but integrated into its lattice. These three water molecules matter profoundly for both stability and solubility.
For customers, this trihydrate dissolves quickly in water or dilute acids, yielding highly uniform solutions crucial for both analytical and preparative work. The water molecules locked into its structure help buffer the compound during shipping and storage, reducing the risk of unwanted hydrolysis or rapid decomposition from ambient humidity swings. The anhydrous form ages and clumps rapidly if mishandled, typically suiting dry process work and some vacuum procedures that require careful inventory control. By contrast, the trihydrate maintains flow and powder quality under ordinary warehouse or lab conditions.
Customers making colloidal gold solutions, medical diagnostic kits, or nanostructured films notice the distinction. With each new research project aimed at tuning gold particle size or coating formation, any little difference in hydration or residual chloride can tip the results. Having managed lines dedicated to both trihydrate and anhydrous variants, our team matches each customer with the correct form, scaling moisture removal or retention to suit their needs, whether they chase maximum solubility or pure dry matter loading.
Each lot of Hydrogen Tetrachloroaurate(III) Trihydrate carries its own batch identity, shaped by gold input, process variables, and environmental factors. We maintain digital and physical records across every stage from metal sourcing to end product delivery. This data backbone isn’t about bureaucracy—it arms us with traceability that can unravel any rare trouble with downstream use, letting users pinpoint the origin of any shift. If a nanoparticle synthesis doesn’t perform, we pull records, analyze current and archival spectra, and provide direct insight into possible causes. Tight process documentation forms the real backbone of customer trust.
Through many years working with this compound, we’ve shifted our documentation to highlight not just final purity, but trace measurements for chloride, free acid, and trace metals. These minute details may not concern every customer, but high-precision fields like analytical spectroscopy or medical device assembly depend on such transparency. Our procedures adapt when new research uncovers a hitherto neglected contaminant or unexpected side effect. Because we manufacture in house, updates arrive in production before problems blossom into recalls or failed experiments.
In our role close to the factory floor and the research bench, we see first-hand how customers stretch the value of Hydrogen Tetrachloroaurate(III) Trihydrate. Some industries require smooth scaling: they begin with bench-scale glassware, duplicate success in pilot reactors, and push toward kilogram batches. Keeping the same supply source through this process means researchers eliminate the common pain point of batch changeover, which often triggers unexpected reoptimization. This continuity makes for better science, faster product launches, and less waste.
Others trust our batch control to support high-purity gold plating baths for microelectronics or specialty connectors. Here, uncontrolled trace metal variation can cause finishes to yellow or lose adhesion, with consequences for performance and reliability. The trihydrate’s balance between easy dissolution and stable shelf life directly supports electrolyte blending and production uptime. This isn’t abstract benefit: reliability shows up as fewer rejects, less maintenance downtime, and better yields per run.
Researchers in biomedicine use our trihydrate as a gold source for antibody conjugation substrates and rapid diagnostic test components. A slight difference in chloride content or hydration state can swing diagnostic accuracy and shelf stability. Here, single-point control over every step gives us room to troubleshoot and refine formulations, working shoulder-to-shoulder with lab teams developing new kits. Partnerships of this kind grow from mutual respect and shared learning—a far shot from the anonymity of simple commodity transactions.
Many challenges of supplying Hydrogen Tetrachloroaurate(III) Trihydrate don’t end at final filtration or packing. This compound requires secure container selection, moisture sealing, and thoughtful labeling. In our experience, overly tight seals can condense water onto the lid or film, leading to sticky clumps and loss of flow. Too loose, and atmospheric moisture shifts the product’s water content before it touches the customer’s lab. Teams here refine their practices, learning from batch reviews and real-life logistics feedback.
Short shipping routes and robust internal handling protocols build confidence, but even then, we partner only with reliable logistics providers proven to handle delicate chemicals. We examine feedback quickly; reports of caked bottles, color drift, or unexpected loss of reactivity flow straight to floor managers, who adjust not only packing routines but, if needed, process parameters. From the very first shipment, our intent is not just to hand off bottles but to hand over chemical stability and dependable performance.
A chemical manufacturer never stands still. By monitoring product use in everything from PCR diagnostic kits to semiconductor precision plating, we keep a pulse on where Hydrogen Tetrachloroaurate(III) Trihydrate solves problems, and where it stumbles. Close relationships with end-users point out gaps in which a modification—tighter acid content, cleaner filtration, slightly adjusted crystallization—improves outcomes. Many of our process improvements take root after a customer’s unique challenge sparks investigation, leading to revised production steps and test protocols. It pays to listen well and respond with changes grounded in facts, not assumptions.
Over time, we have learned that seemingly minor tweaks—fresh filter media or a different lot of gold starting material—may ripple outward into downstream manufacturing. Internal batch reviews, cross-lab analysis sharing, and fast response teams deliver updates where they matter most, before a small deviation becomes a stumbling block. Our commitment centers not only on selling material but on sharing understanding and collectively raising success rates across fields.
Hydrogen Tetrachloroaurate(III) Trihydrate remains a cornerstone for so much of today’s research into gold chemistry, nanotechnology, analytical instrumentation, and advanced medical diagnostics. This is not just due to its gold content or its technical grade specification. The long field history, trusted handling, and close partnership between manufacturer and user together generate the true value. As more researchers tackle new chemical syntheses, prepare next-generation gold nanoparticles, or develop gold-based therapies, dependability and consistency in reagents underpin progress.
Our factory infrastructure invests as much in lab analysis and technical team expertise as it does in tanks or reactors. This long-term approach means feedback—good or bad—is met with fast action, open dialogue, and willingness to dig for the small details that matter most to each customer or partner. No online listing or commodity broker mimics this level of iterative support.
Chemistry continues to evolve, and with it, so must our mastery of every step—from gold sourcing to final packaging and shipment. The experience of producing Hydrogen Tetrachloroaurate(III) Trihydrate through countless cycles provides an anchor for reliability and non-stop improvement. As new applications demand even tighter impurity control, finer particle-size handling, or custom blending, we expand our collaborations, run new batches, and exchange learning directly with the community that puts this product to the test.
It’s easy to see the trihydrate on a label, but only with years at the reactor, desk, and shipping bench does a manufacturer learn the difference that every process variable makes. Our intention is to keep every decision rooted in end-use performance, and to invite open communication with those who transform raw chemical into scientific and industrial progress.
Producing Hydrogen Tetrachloroaurate(III) Trihydrate is more than a technical task or a line on a catalog. Every step—from gold assay to last-mile shipment—reflects generations of dedicated process management, attention to detail, and real-time feedback between manufacturing and application. For those building tomorrow’s diagnostic platforms, catalysts, and nanomaterials, expert-led manufacturing brings both confidence and the agility to tackle new challenges. This mutual trust forms the foundation of every long-term relationship our team builds, every week, with every fresh batch.