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Tetrabutylammomium Thiocyanate

    • Product Name Tetrabutylammomium Thiocyanate
    • Alias TBASCN
    • Einecs 242-028-0
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    764747

    Chemical Name Tetrabutylammonium thiocyanate
    Molecular Formula C17H36N2S
    Molar Mass 300.55 g/mol
    Cas Number 37088-19-8
    Appearance White to off-white crystalline powder
    Solubility In Water Soluble
    Melting Point 105-110 °C
    Density 1.04 g/cm³ (approximate)
    Storage Conditions Store at room temperature, dry, well-sealed
    Synonyms TBA SCN, tetra-n-butylammonium thiocyanate
    Ec Number 253-319-8
    Pubchem Cid 4293653
    Hazard Statements Irritant to skin and eyes

    As an accredited Tetrabutylammomium Thiocyanate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Tetrabutylammonium Thiocyanate, 100g, supplied in a sealed amber glass bottle with a screw cap and clear hazard labeling.
    Shipping Tetrabutylammonium Thiocyanate should be shipped in tightly sealed containers, protected from moisture, heat, and incompatible substances. It is typically transported as a hazardous material according to local regulations. Ensure proper labeling and documentation, and handle with gloves and eye protection to avoid contact during shipping and handling. Store in a cool, dry place.
    Storage **Tetrabutylammonium thiocyanate** should be stored in a tightly closed container, in a cool, dry, and well-ventilated area, away from moisture and incompatible substances such as strong oxidizers and acids. Protect the chemical from light and air exposure. Ensure the storage area is clearly labeled and equipped with appropriate spill containment measures. Use suitable gloves and eye protection when handling.
    Application of Tetrabutylammomium Thiocyanate

    Applications of Tetrabutylammonium Thiocyanate in Industrial Manufacturing

    Tetrabutylammonium thiocyanate serves in several specialized sectors as a phase-transfer catalyst, analyte, and purification aid. Below, we outline key industrial segments utilizing this material, with each scenario focusing on specific uses, compliance criteria, formula ratios, process steps, and product outputs.

    1. Pharmaceutical Synthesis: API Intermediate Manufacturing

    Active pharmaceutical ingredient (API) producers incorporate tetrabutylammonium thiocyanate as a phase-transfer catalyst in complex nucleophilic substitution and heterocycle-forming reactions. The chemical facilitates efficient transfer of thiocyanate ions into organic reaction media, which is essential for creating certain sulfur- and nitrogen-containing pharmaceutical intermediates with strict impurity limits. Manufacturers fine-tune the catalyst volume to reaction scale, ensuring residue removal complies with GMP control.

    Industry compliance standards

    • ICH Q7a Good Manufacturing Practice Guidelines for APIs
    • US FDA 21 CFR Part 211 (Finished Pharmaceuticals)
    • European Pharmacopoeia (monograph compliance for APIs)
    • Chinese Pharmacopoeia (for local production and registration)

    Typical usage ratio

    • 0.5–5.0 mol% relative to limiting precursor; process chemists adjust based on desired reaction rate and scale-up yield; lower end for high-purity APIs, higher end for complex intermediates

    Downstream process integration

    • Added during reaction phase with organic reactants and base, prior to work-up and extraction; completely removed through aqueous washing or chromatography at the purification stage

    Final product types

    • Sulfur-containing heterocyclic APIs
    • Thiocyanate-bearing alkaloid precursors
    • Specialty amine intermediates for patented drugs

    2. Fine Chemical Synthesis: Organic Sulfur Compound Production

    Producers in the specialty and fine chemical sector use tetrabutylammonium thiocyanate as both a catalyst and nucleophilic reagent in synthesizing organic sulfur compounds, especially aryl and alkyl thiocyanates. Its solubility in organic media enables high yields under mild conditions in batch and continuous flow processes. The operator controls addition ratio to minimize excess reagent, and applies robust washing procedures post-reaction for product isolation.

    Industry compliance standards

    • REACH Regulation (EC) No 1907/2006 (European Union chemical safety)
    • OECD Guideline No. 105 (Water Solubility)
    • ISO 9001 Quality Management System Certification

    Typical usage ratio

    • 1.0–10.0 eq per substrate depending on conversion efficiency; higher levels for less reactive substrates; scaled with batch volume

    Downstream process integration

    • Introduced after substrate dissolution, typically at start of nucleophilic substitution step; removed by water wash or crystallization during isolation of thiocyanated product

    Final product types

    • Aryl thiocyanates
    • Alkyl thiocyanates
    • Thiocyanate-functionalized surfactant building blocks

    3. Analytical Reagents: Ion Chromatography Eluent Preparation

    Laboratory and high-volume analytical reagent manufacturers formulate tetrabutylammonium thiocyanate in mixed aqueous-organic mobile phases for ion chromatography, particularly for separating and quantifying anions in pharmaceutical and industrial samples. The quaternary ammonium component acts as an ion-pairing reagent, ensuring sharp peak resolution for analytes including thiocyanate, halides, and other anions. To maintain chromatographic system integrity, strict monitoring of purity and solution concentration occurs during reagent preparation and packaging.

    Industry compliance standards

    • ISO 17025 (Testing and Calibration Laboratory Accreditation)
    • ASTM D4327 (Anions in Water by Ion Chromatography)
    • USP General Chapter <621> (Chromatography)

    Typical usage ratio

    • 0.1–5.0 mM in water/acetonitrile blends; tuned to ionic strength, column compatibility, and target analyte sensitivity

    Downstream process integration

    • Dissolved in deionized water and acetonitrile; filtered and bottled under controlled, dust-free conditions; analytical batch QC for mobile phase uniformity

    Final product types

    • Ready-to-use ion chromatography eluents
    • Analytical standards for environmental labs
    • Custom blending reagents for contract testing labs

    4. Electrochemical Device Manufacturing: Ionic Conductive Gel Formulation

    Manufacturers of reference electrodes and specialized electrochemical sensors use tetrabutylammonium thiocyanate as a source of large, mobile anions in gel and polymer electrolytes. It enhances ionic conduction and maintains stable junction potentials in non-aqueous and blended systems. The production line calibrates incorporation ratio to match required conductivity, then tests long-term stability under real storage conditions. Strict process documentation supports traceability.

    Industry compliance standards

    • IEC 60747-1 (Semiconductor Devices: General Requirements)
    • RoHS Directive 2011/65/EU (Restriction of Hazardous Substances in Electronics)
    • ISO 13485 (Quality System for Medical Device Components)

    Typical usage ratio

    • 0.5–3.0 mol% total weight in gel phase; verified by conductivity and viscosity endpoints

    Downstream process integration

    • Blended directly into non-aqueous monomers or polymer solutions before gelation; cell or electrode assembly conducted in cleanroom to prevent atmospheric contamination

    Final product types

    • Silver/silver thiocyanate reference electrodes
    • Polymer ion-selective membrane sensors
    • Custom sensor gels for process monitoring equipment

    5. Phase-Transfer Catalysis: Agrochemical Active Ingredient Manufacturing

    Agrochemical ingredient producers integrate tetrabutylammonium thiocyanate to accelerate nucleophilic substitutions generating thiocyanate-substituted herbicidal and pesticidal actives. The controlled application allows for selective reactions under two-phase conditions, significantly increasing process throughput while reducing by-products. Finished actives undergo repeated washing and purification to remove residual ammonium ions, then enter formulation lines for agricultural use.

    Industry compliance standards

    • FAO/WHO Good Laboratory Practice (GLP)
    • US EPA 40 CFR Part 174 (Pesticide Chemical Manufacturing)
    • ISO 9001 with scope in Agrochemical Synthesis

    Typical usage ratio

    • 0.2–3.0 mol% per organic substrate; optimized to balance conversion speed and contamination risk

    Downstream process integration

    • Dosed at start of organic phase reaction alongside base; phased out with water washes and downstream distillation of product fractions

    Final product types

    • Herbicide intermediates with thiocyanate groups
    • Thiocyanate-based pesticide actives
    • Custom agrochemical building blocks for synthesis
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    Certification & Compliance
    More Introduction

    Tetrabutylammonium Thiocyanate: A Closer Look from the Manufacturer’s Floor

    Experience Shaped by Production

    Every batch of Tetrabutylammonium Thiocyanate we produce represents more than just careful chemical synthesis; it represents years on the production line, where attention to detail directly affects the purity and outcome of each kilogram. Our chemists spend their days minding reaction temperatures, controlling moisture levels, and monitoring color changes that can mean the difference between a perfect product and a failed run. Our experience shows that this salt cannot tolerate shortcuts. When you work with tetrabutylammonium thiocyanate, the process forces you to respect the properties of both the ammonium component and the thiocyanate anion—both show their quirks during synthesis. Strict limitation of humidity, precise stoichiometry of reactants, and a reliable purification setup define the stability and effectiveness of this compound in practice.

    Getting Specific: Model, Purity, and Best Practices

    In our facilities, tetrabutylammonium thiocyanate is prepared in a purity exceeding 98%, usually as a white to off-white crystalline powder. For most research-grade applications, this level of purity proves more than sufficient. Some customers use higher grades—99% or better—for particularly sensitive reactions, especially where trace halides or moisture would interfere. The model that leaves our plant has a relatively low water content, typically under 0.5%. Samples that do not meet this specification do not ship out until they do. Dust control and inert atmosphere handling prevent cross-contamination. Long, hot, humid summers pose challenges, but years of process adjustment make these days more a matter of routine than risk. Every batch is analyzed using established QC methods: melting point, titration for thiocyanate, NMR for contaminants, and routine Karl Fischer for moisture.

    Industry standards call for consistent bulk density and free-flowing powder. We regularly adjust mixing speeds and drying rates on the line based on feedback from our downstream partners. Packing the powder in double PE bags and sealing inside sturdy drums guards against caking and exposure. We do not recycle offcuts or failed batches—a lost hour on the production calendar is better than compromised quality.

    Applications Seen from the Manufacturer’s Perspective

    Users in the organic synthesis field often turn to our Tetrabutylammonium Thiocyanate for phase-transfer catalysis and as a reliable thiocyanate source in nucleophilic substitution reactions. We get regular inquiries from pharmaceutical researchers who appreciate how the tetrabutylammonium cation promotes solubility in nonaqueous solvents like dichloromethane, toluene, or acetonitrile. The salt delivers the thiocyanate functional group efficiently, supporting the synthesis of isothiocyanates or the introduction of SCN- into aromatic and aliphatic intermediates.

    Our technical team consults with both academic and industrial users about optimizing procedures—should you add the reagent slowly, or dump it in at once? How does temperature affect yield, and should extra drying be considered? Not all alternative thiocyanate salts bring the same degree of process reliability. Sodium or potassium thiocyanate fall short in non-polar solvents, often causing issues with separation or formation of unwanted byproducts. Customers have shown us failed reactions where phase-transfer issues or limited solubility cost time and resources. We do not see as many complaints or inquiries about process failures when our product is in the mix; it brings repeat customers who value practical, proven performance.

    How This Product Stands Out

    Most off-the-shelf thiocyanate reagents available from traders and brokers offer a basic level of utility but fall short of what’s possible in a tightly controlled manufacturing setup. Low-quality samples often show discoloration, retained solvents, or—most problematic—trace inorganic contaminants that wreak havoc during catalysis. We have examined these batches in our QC lab: brown tinges, clumping, and ambiguous odor indicate compromised synthesis or poor packing. Our product, in contrast, brings a predictable, finely divided crystalline texture, stable color, neutral odor, and consistent behavior under both laboratory and plant-scale conditions.

    Control over the quaternization process and precise selection of quaternary ammonium precursors remain critical. From experience, insufficient control at this stage leads to incomplete reaction and ‘dirty’ product. Downstream purification—either by repeated crystallization or strict washing with suitable solvents—draws a line between high and low performance. By controlling every aspect from raw material selection to packaging, we create a product that holds up under scrutiny—not only in our own QC lab but inside the diverse setups our customers use. This reliability justifies direct sourcing from a manufacturer rather than dealing with layers of intermediaries.

    Supporting Real-World Research and Processes

    Over the years, we have partnered with hundreds of chemical firms, research institutions, and end-users throughout the world who demand real performance—not theoretical marketing. One customer shared data showing increased yield and cleaner workup steps for a pharmaceutical intermediate after switching to our Tetrabutylammonium Thiocyanate over a less carefully made version. Another group reported improved reproducibility—across dozens of parallel syntheses, each batch proceeded as outlined in the procedure, without the hitches they saw with impure, damp salt. We have even helped teams troubleshoot their formulation protocols, finding that issues attributed to process design were, in fact, due to inferior item quality from their former suppliers.

    Improving solvent recovery, reducing the amount of waste salt formed, and achieving more rapid filtration—these benefits recur in feedback from users. Some customers have seen measured improvements in their downstream analytics: reduced baseline noise in chromatography, cleaner NMR spectra, fewer rogue peaks in mass spectrometry. These process gains translate into saved time, lower costs, and increased confidence among production managers and bench chemists alike. When you work directly with the manufacturing floor, the communication flows both ways—product improvements often come from the stories, lab notes, and practical frustrations you share.

    Environmental and Handling Considerations

    Modern chemical manufacturing faces pressure to reduce waste, minimize emissions, and provide clear disposal options for all products. Tetrabutylammonium Thiocyanate is no exception. On our floor, closed-system transfers, solvent recovery loops, and high-grade fume extraction reduce operator exposure and limit the spread of odors. Regulatory audits mean every process is documented, every drum accounted for. The waste generated during purification and crystallization is neutralized, collected, and sent to certified recyclers or incinerators—never simply dumped or ignored.

    Handlers need appropriate protective equipment—gloves, masks, splash protection—since even relatively benign quaternary ammonium salts can irritate skin or mucous membranes. Our plant staff conduct regular safety drills and receive basic training in spill management. Production-scale handling means focusing on bulk transfer ergonomics, static control, and prompt spill cleanup. Routine monitoring of air quality and solvent residues ensures both a safe workplace and confidence in the finished product quality.

    Comparing to Other Phase-Transfer Reagents and Thiocyanate Salts

    Tetrabutylammonium Thiocyanate offers a unique balance of solubility, reactivity, and process flexibility. Sodium and potassium thiocyanate, easy to procure and low in cost, offer use in aqueous systems but prove awkward in organic synthesis or when water-sensitive intermediates are involved. We have worked with customers who started with conventional alkali metal thiocyanates, only to experience sluggish phases or unwanted precipitation. High-molecular-weight cations—like those in methyltrioctylammonium thiocyanate—bring improved solubility in certain contexts, but cost and tendency to bind more water can complicate applications.

    Our staff observe that switching between different tetraalkylammonium analogues sometimes causes changes in reaction rates or workup procedures, which can catch process chemists off guard. The tetrabutylammonium cation gives a practical middle ground: better organic solubility and transfer properties than methyl or ethyl homologues, while avoiding the waxiness and handling challenges of bulkier quaternary ammonium cations. Compared to tributylmethylammonium and tetraoctylammonium versions, our experience suggests the tetrabutyl variant matches most routine laboratory and pilot-plant expectations for ease of use, stability, and cost-performance ratio.

    Controlling Quality All the Way to the End User

    Quality assurance in the field of fine chemicals goes far beyond measuring numbers on a certificate of analysis. Our approach integrates ongoing process control with genuine responsiveness: customer-reported findings lead to process tweaks, modified drying cycles, or even a complete change in the plant layout. We keep running records of each batch—starting from incoming raw materials through to finished goods. Every operator knows their inputs can affect not only production yields but also the trust of downstream researchers or plant engineers.

    Where third-party brokers might lack insight into production details, direct manufacturers see and shape the process outcome at every stage. There have been times when an entire batch failed a final test due to a supplier’s inconsistency; rigorous testing and immediate troubleshooting contained the problem. We monitor and improve storage stability through accelerated aging, tracking lots exposed to light, heat, and humidity in controlled conditions. Feedback loops between our QC team and end-users identify issues early, so off-spec material never leaves the factory floor.

    Meeting Changing Regulatory and Industry Demands

    We listen carefully to regulatory developments in every region where our product finds use. This attention to compliance means safer material handling, better worker protection, and a reduced footprint for all partners in the supply chain. Recent years have brought new attention to REACH registration or enhanced documentation, and our dedicated compliance staff keep dossiers updated and respond promptly to auditor requests. The days of “buying blind” through anonymous catalogs no longer make sense for our partners. Scientists and process managers turn to direct manufacturers—a fact driven home by the increasing demand for full transparency.

    We work with major certification bodies to document the provenance, safety, and composition of every shipment. Even when local law does not require a particular level of disclosure, we typically exceed these rules. Doing so benefits everyone, especially end-users who need predictability for scale-up or regulatory approval of novel chemicals. Some partners require not only a detailed safety data sheet, but also declarations on trace tungsten, halide, or even boron content. We collect and test this data as a routine part of manufacturing, not just as an afterthought or marketing pitch.

    Supporting Innovation Through Consistency

    In a changing industry where timelines run tighter, and reproducibility issues threaten research budgets, we see our Tetrabutylammonium Thiocyanate as part of a solution. Academic labs and large-scale synthesis teams alike report that skilled chemists can only do their best work when essential reagents arrive exactly as anticipated, every time. We have witnessed firsthand how product inconsistency can derail a project—one missed line in the batch record, or an underestimated moisture content, and an entire week’s work vanishes. Researchers expect not just a product, but a manufacturer willing to collaborate, answer technical questions, replace off-spec lots, and improve based on shared results.

    Requests from innovation-driven clients often focus on subtle changes—increased flowability, a particular particle size, zero detectable heavy metals. Because we own and operate the plant, we review requests side by side on the line with process operators, engineering, and analysts. These close partnerships improve everything from the way we label drums to whether we offer custom packing or ship overnight for high-priority runs. When unusual challenges come up—say, unique solubility needs for a specialist pharmaceutical process—we can run short pilot lots or adjust purification schedules, since decision-making happens inside our walls.

    Long-Term Commitment Instead of Short-Term Sales

    End users tell us that working directly with a manufacturer builds reliability into their projects. Moving away from generic catalog items cuts out the risk of substituted lots, commingled material, or late-day shipment surprises. Our customers return not out of habit, but from measurable improvements in their own work—shorter cycle times, lower impurity levels, more predictable batch records. Every kilogram of Tetrabutylammonium Thiocyanate that leaves our warehouse reflects the pride and effort of our entire team, from the first mixer to the last check on the documentation. Building trust over decades, we have found this approach means more in the long run than competing on price alone.

    For those seeking to advance fine chemical syntheses, complex formulations, or new material design, the difference lies in how reagents are made, managed, and delivered. From our vantage point, every order signals a partnership built on shared standards, continual feedback, and technical depth. This perspective shapes every choice we make, and it is why our Tetrabutylammonium Thiocyanate remains in high demand among those who rely on their chemistry working the first time—and every time.