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Butyltriphenylphosphonium Chloride

    • Product Name Butyltriphenylphosphonium Chloride
    • Alias BTPC
    • Einecs 219-900-9
    • 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
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    Specifications

    HS Code

    668306

    Chemical Name Butyltriphenylphosphonium Chloride
    Cas Number 1330-87-8
    Molecular Formula C22H24ClP
    Molecular Weight 354.85 g/mol
    Appearance White to off-white crystalline powder
    Melting Point 163-167°C
    Solubility Soluble in water and polar organic solvents
    Density 1.15 g/cm³ (approximate)
    Purity Typically ≥98%
    Boiling Point Decomposes before boiling
    Storage Conditions Store in a cool, dry place, tightly closed
    Synonyms Triphenylbutylphosphonium chloride
    Ec Number 215-591-3
    Ph 1 Solution 5-7
    Odor Odorless

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

    Packing & Storage
    Packing The 100g Butyltriphenylphosphonium Chloride comes in a sealed amber glass bottle with a tamper-evident cap and clear labeling.
    Shipping Butyltriphenylphosphonium chloride is typically shipped in tightly sealed containers, protected from moisture and light. It should be packed in accordance with local, national, and international regulations for chemical substances. The container must be clearly labeled, and shipping should comply with safety guidelines for non-hazardous solids to prevent leaks or contamination.
    Storage Butyltriphenylphosphonium chloride should be stored in a tightly sealed container, away from moisture and incompatible substances. Keep it in a cool, dry, well-ventilated area, ideally at room temperature. Protect it from direct sunlight and sources of ignition. Ensure proper labeling and store separately from strong oxidizers, acids, and bases to prevent hazardous reactions. Always follow standard laboratory safety protocols.
    Application of Butyltriphenylphosphonium Chloride

    Applications of Butyltriphenylphosphonium Chloride in Industrial Manufacturing

    Butyltriphenylphosphonium chloride is widely used as a phase-transfer catalyst and process auxiliary in several high-value industrial sectors. Our factory-grade product supports demanding synthesis requirements across specialty polymers, fine chemicals, and pharmaceutical intermediates. Key downstream application tracks are outlined below with reference to regulatory, formulation, production, and end-use specifics.

    1. Epoxy Resin Curing Systems for Advanced Composites

    This material functions as a highly efficient phase-transfer catalyst in the production of cured epoxy systems used for aerospace, automotive, and wind energy composite parts. It accelerates the crosslinking reaction between epoxy monomers and anhydride or amine curing agents, enabling controlled gel times, low-temperature cures, and consistent mechanical properties. Specialized formulations rely on its catalytic activity to maintain quality across high-throughput mixing and molding operations.

    Industry compliance standards

    • REACH Regulation (EC) No 1907/2006
    • ISO 9001:2015 for Quality Management Systems
    • ASTM D1652 Standard for Epoxy Resins
    • UL 94 Flammability Standard, where required by end-use

    Typical usage ratio

    • 0.05% to 0.5% by weight, relative to total resin system
    • Exact dosage adjusted based on curing temperature and desired reaction rate; lower dosages for ambient cure, higher for accelerated schedules

    Downstream process integration

    • Added directly to the resin component before blending with curing agent
    • Compatible with continuous mixing and bulk batching operations
    • Stable under both ambient and elevated storage conditions

    Final product types

    • High-performance epoxy prepreg fabrics
    • Automotive structural adhesives
    • Wind turbine composite blades
    • Printed circuit board laminates

    2. Phase-Transfer Catalysis in Quaternary Ammonium Salt Synthesis

    Industries utilize this phosphonium salt to boost yield and selectivity in the synthesis of specialty quaternary ammonium compounds, particularly for water treatment, surfactants, and textile auxiliaries. The catalyst facilitates effective transfer of inorganic anions into organic reaction phases, achieving higher throughput and lower waste during batch and continuous processes.

    Industry compliance standards

    • OECD Guideline 106 for Adsorption/Desorption
    • ISO 14001 Environmental Management System
    • Chemical Control Law (Japan), if exported to Japanese partners
    • Responsible Care/Global Product Strategy (GPS)

    Typical usage ratio

    • 0.1% to 1.5% by weight relative to limiting reactant
    • Efficient at low concentrations; optimization required for scalability and waste treatment systems

    Downstream process integration

    • Charged in aqueous-organic biphasic reactions at reactor charging stage
    • Maintains activity through repeated cycles if recovered properly
    • Compatible with glass-lined and stainless steel vessel systems

    Final product types

    • Quaternary ammonium water treatment coagulants
    • Surface-active agents for industrial detergents
    • Antistatic textile finishes
    • Paper wet-strength additives

    3. Organic Synthesis for Active Pharmaceutical Ingredients (APIs)

    Pharmaceutical manufacturers select this catalyst for sensitive transformations where strong nucleophilicity and controlled phase transfer are critical—such as in Wittig reactions and heterocycle formation. It enables precise atom economy and minimizes by-product contamination. Typical routes include the preparation of intermediates for cardiovascular, anti-inflammatory, and central nervous system drugs. Each process involves strict batch tracking and documented GMP validation.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for APIs
    • USP-NF current edition monographs for related substances
    • 21 CFR Part 211 (US FDA cGMP regulations)
    • European Pharmacopoeia applicable synthesis and impurity guidelines

    Typical usage ratio

    • 0.02% to 0.2% by molar ratio versus target reactant
    • Determined by specific substrate and reactor design; adjusted to meet batch quality targets

    Downstream process integration

    • Added at the initial reaction stage, with solvent charging
    • Allowable residue level verified by validated QC methods (HPLC/GC)
    • Catalyst removed through aqueous washing or chromatographic separation during workup

    Final product types

    • Wittig-based pharmaceutical intermediates
    • Pyridine and heterocyclic active ingredients
    • API precursors for cardiovascular and CNS therapeutics
    • Bespoke fine chemical building blocks for CDMO clients

    4. Polysiloxane and Silicone Elastomer Production

    Silicone and polysiloxane manufacturers use this material as a catalyst for controlled anionic or cationic ring-opening polymerizations, targeting repeatable molecular weight distribution and optimal crosslink density. The catalyst supports continuous and batch manufacturing of heat-resistant, chemically inert silicone parts for sectors where regulated thermal and electrical performance matter. Utilization is carefully monitored to comply with sector-specific purity and processing requirements.

    Industry compliance standards

    • RoHS 2011/65/EU (lead, mercury, cadmium, and other substance restrictions)
    • IEC 60695-11-10 Flame Retardance in Electrical Applications
    • ISO 9001:2015 Quality Management Systems
    • FDA CFR 177.2600 (food contact, when applicable to elastomers and gaskets)

    Typical usage ratio

    • 0.01%–0.1% by weight on total monomer charge
    • Adjusted lower in food-grade grades or where mechanical properties require precision

    Downstream process integration

    • Introduced directly into polymerization reactor with siloxane monomers
    • Supports both high-purity and filled formulations
    • Consistent performance across continuous extrusion and bulk casting lines

    Final product types

    • LED and automotive silicone encapsulants
    • Industrial silicone elastomer gaskets and seals
    • Thermal interface materials for electronics
    • Specialized food contact-grade silicone tubing, where permitted

    5. Catalyst for Polycarbonate and Polyether Synthesis

    Producers of engineering plastics and performance polymers utilize this compound as a phase-transfer catalyst during polycarbonate and polyether synthesis, especially in the production of bisphenol and diaryl carbonate-based polymers. The precisely controlled catalytic behavior enhances molecular weight uniformity and allows for efficient chain growth in high-throughput reactors. This is critical to meet demanding tensile, impact, and transparency requirements in end-use products, particularly for optical and demanding mechanical applications.

    Industry compliance standards

    • EN ISO 7391 Polycarbonate Resins—Testing
    • UL 746C Polymeric Materials Standard
    • ISO 14001 Environmental Management
    • CSA C22.2 No. 0.17-M1997 (Canada, electrical products)

    Typical usage ratio

    • 0.01% to 0.25% by weight on total polymer feed
    • Fine-tuned by number-average molecular weight target and polymerization temperature

    Downstream process integration

    • Added with phosgene or carbonate precursor charging
    • Integrated into both batch and continuous reactor systems
    • Easily separated during washing/phase splitting after reaction

    Final product types

    • Optical-grade polycarbonate sheets and films
    • Engineering polyether thermoplastics for electronics housings
    • Polycarbonate automotive glazing components
    • Precision molded packaging and device housings

    6. Construction Chemical Synthesis: Quaternary Compounds for Concrete Additives

    Within the construction chemical sector, this phosphonium salt serves as a phase-transfer catalyst for synthesizing select quaternary ammonium and phosphonium compounds used in high-performance water reducers, air-entraining agents, and surface treatments for concrete. The resulting additives increase flowability, set control, and long-term durability of ready-mix and precast elements, supporting regulated construction workflows and export-grade building projects.

    Industry compliance standards

    • EN 934-2:2009 Admixtures for Concrete, Mortar and Grout
    • ASTM C494/C494M—Standard Specification for Chemical Admixtures for Concrete
    • ISO 14025 Environmental Product Declaration
    • LEED v4 Building Product Disclosure, when specified by downstream customers

    Typical usage ratio

    • 0.05%—0.3% by weight of dry admixture ingredient
    • Adjustment based on desired workability and setting profile; closely monitored for transport and jobsite consistency

    Downstream process integration

    • Catalyst included during synthesis of water reducer intermediates
    • Post-reaction, finished admixtures blended based on customer batching standards
    • QC-tested for chloride and residual catalyst in final additive

    Final product types

    • High-range water-reducing concrete admixtures
    • Set-retarding and accelerating agents
    • Surface sealing treatments
    • Specialty curing compounds and plasticizers
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    Certification & Compliance
    More Introduction

    Butyltriphenylphosphonium Chloride: Built on Practical Experience in Chemical Manufacturing

    Introducing Our Butyltriphenylphosphonium Chloride

    Working on the production floor for over a decade, I’ve come to appreciate what separates reliable chemical products from commodities that just fill a market need. Butyltriphenylphosphonium Chloride, with the chemical formula C21H24ClP, is a standout material we manufacture for a range of demanding industrial uses. A staple in phase-transfer catalysis and an integral partner in alkylation and Wittig-type reactions, our product finds its way into organic synthesis labs and large-scale production settings alike. We stick to a model and reputation based on results and dependable performance batch after batch.

    The Practical Side of Butyltriphenylphosphonium Chloride

    Butyltriphenylphosphonium Chloride looks simple on paper, but every practical chemist knows the difference between a basic commodity and one manufactured with care, using sharply monitored processes and tightly held purification standards. Our product offers a consistent white to off-white powder, with high purity levels and a stable shelf life, because experience taught us impurities and moisture can throw off reaction yields or, worse, cause expensive setbacks in downstream processes. Each batch rolls out with a focus on moisture control, precise molar ratio, and granular clarity to reduce caking or dusting during handling. This comes not from a textbook, but from daily know-how and direct feedback from our partners.

    The Role in Organic Synthesis

    Over years of discussions with synthesis teams, one theme always comes up: reliability during reactions. Butyltriphenylphosphonium Chloride often serves as a phase-transfer catalyst, pushing the limits of biphasic reactions in organic and aqueous phases. We see this catalyst speeding up reactions that would otherwise crawl along, especially in nucleophilic substitution setups. Chemists often talk about stubborn reaction bottlenecks—so we keep our process robust to ensure the product withstands the worst of batch-to-batch variability. That effort keeps hundreds of reactors turning and schedules on track, a critical factor for any operation managing costly feedstocks and tight deadlines.

    How We Approach Specifications

    I won’t recite a staff sheet of specs, as everyone in the industry knows the usual chorus of purity, melting point, and particle size grades. Instead, I’ll share where our standards emerge from—the intersection of chemical theory and day-to-day realities in blending, metering, or storage. We target purity above 99% for Butyltriphenylphosphonium Chloride. Refinement isn’t about showing off; it’s about keeping downstream product color, clarity, and safety on point, reducing process troubleshooting, and keeping plant audits straightforward and honest. Our moisture control, routinely checked before shipment, ensures every drum or bag enters your process without setting off a chain reaction of drying demands, inconsistent results, or equipment blockages.

    Comparing to Other Phosphonium Salts and Catalysts

    A lot of manufacturers move quickly to draw a line between their offering and others like Tetrabutylphosphonium Chloride or Methyltriphenylphosphonium Bromide, two cousins popular in similar reactions. From daily conversations with process engineers, I’ve learned the real distinctions emerge out on the plant floor, not on paper. Butyltriphenylphosphonium Chloride delivers a unique blend of solubility, reactivity, and temperature stability. In several journeyed stories from our clients, switching to our product eliminated yield deficits when other options clumped, cooked off, or failed on solubility. Its butyl chain brings just the right balance—enough hydrophobic character for organic extractions, but without the tendency to create unwelcome secondary reactions.

    Supporting Specialty Applications

    Some manufacturers shy away from detailed application support, but we run our own in-house labs and have direct insight from technical teams handling custom syntheses or pilot runs. We know Butyltriphenylphosphonium Chloride helps streamline reaction steps in complex pharmaceutical intermediates, electronic materials syntheses, and fine chemical production. Stories from the electronics industry, for example, show that this compound’s profile lets it operate smoothly during sensitive coupling reactions, avoiding color or spot formation in the resulting film. In pharmaceutical development, it helps labs avoid repetitive purification cycles, driving forward timelines on costlier R&D projects. Practical feedback like this shapes every batch.

    Handling and Safety Mindsets

    Nothing sours a day’s work faster than downtime due to poor handling or inconsistent product. From the start, we engineered our packaging and shipment formats to make Butyltriphenylphosphonium Chloride easy to move, transfer, and store. We always recommend using the material in well-ventilated spaces with appropriate personal protective equipment—that advice isn’t just legalese, it grows out of seeing production teams battle dust clouds or drum failures in real time. Routine analysis during packaging limits risk and lets production teams focus on synthesis, not cleanups or do-overs. Safe handling matters as much as high purity, and build quality into those logistical details, not just into the product itself.

    Staying Ahead with Reliable Supply and Traceability

    Never underestimate the impact of traceable, transparent supply on an industrial operation. We track every batch of Butyltriphenylphosphonium Chloride from raw material intake through to shipment. If an issue ever arises, finding its source doesn’t become an expensive guessing game. We keep a close relationship with our raw material suppliers, putting diligence over price-offs, and verify each input before it feeds into our reactor lines. That vigilance pays forward as fewer disruptions and headaches for process chemists and plant managers trying to keep a thousand moving parts running true. Time after time, uninterrupted supply chains win stronger customer loyalty than empty guarantees.

    What End-Users Tell Us About Performance

    Long-term partnerships with pharmaceutical companies, electronics manufacturers, and specialty chemical producers show the real story of Butyltriphenylphosphonium Chloride in action. Lab reports and repeated customer feedback highlight high yields, consistent product grade, and trouble-free scaling from synth to pilot plant. Many have shared how shifting to our product allowed tighter process control, smoother phase separations, and reduced waste streams—practical benefits you only find out after repeated use under pressure. We also gained quick recognition for our ability to support tweaks to the product grade, whether for particle size or special low-halide requirements, building stronger connections and dependable supply settings.

    Respecting Environmental and Regulatory Concerns

    Regulatory expectations ramped up steadily in recent years. We built our production to meet not just regional requirements but also tighter customer demands on low-impurity, low-halide content and documentation. Our plants run dedicated waste management lines, and we routinely analyze our effluents to minimize environmental impact. Full documentation accompanies every lot—not as a checkbox, but to simplify audits and backtrack any rare nonconformity. We stay in touch with regulatory updates and invest in plant modifications to ease the burden for R&D and EHS teams who already juggle enough complexity as it is. The difference shines through at every site visit or audit, not just in a compliance folder.

    Working with Butyltriphenylphosphonium Chloride Every Day

    It becomes clear after years in chemical manufacturing that the day-to-day reliability of raw materials can make the difference between a project’s success and mounting downtime costs. Technicians share stories about how a consistent shipment of Butyltriphenylphosphonium Chloride meant fewer line stoppages from unexpected solubility problems or clumping. Engineers tell us how well-controlled particle size helped avoid feed blockages in automated dispenser systems. These “small” details aren’t visible in an invoice or spec sheet, but their value shows up every shift. That’s where our commitment comes from.

    Why We Focus on Customer Experience, Not Just Bulk Supply

    We’ve watched other suppliers offer generic grades with little insight, letting packaging deteriorate or skipping key paperwork on shipment. We go out of our way to verify each unit of Butyltriphenylphosphonium Chloride—from pilot scale to thousand-kilo lots—clears all in-line testing and is packed in moisture-resistant, tamper-evident containers. Our technical team stays available for troubleshooting questions or guidance on reaction setup, and often relays practical recommendations between customers in different industries to solve shared pain points. That culture grew over time and runs deeper than any certificate of analysis ever could.

    Continuous Improvement: Feedback Drives Results

    Quality in specialty chemicals doesn’t stand still. We learn as much from a failed pilot run or a patch of discolored product as from any major success. Every time we get detailed lab reports, or field a technician’s call about an unusual side reaction, we bring it back into our process review. Sometimes a small adjustment—tweaking recrystallization temperature, refining a drying step—pushes the final quality up a notch and solves a repeated issue out at customer sites. Our production team meets weekly to scan these reports, looking for ways to convert each story into better product and smoother service. The lessons never stop.

    Looking Beyond Current Uses

    We see research groups and industry R&D arms constantly widening the applications of Butyltriphenylphosphonium Chloride. Some emerging directions include ionic liquid synthesis, green chemistry crossover approaches, and specialized catalysis for energy storage materials. Our process stays flexible enough to tweak grades for new frontiers without losing the proven backbone of quality control. We welcome direct collaboration—early-stage feedback, odd purification requests, or joint explorations on challenging synthesis steps. These partnerships channel practical knowledge from shop floor to lab bench, growing the knowledge base for everyone involved.

    Final Thoughts from the Factory Floor

    Butyltriphenylphosphonium Chloride is more than just another specialty salt. After years at the production helm, we’ve learned the industry doesn’t reward the lowest bidder or the flashiest brochure. It rewards those who keep production simple, reliable, and personal—delivering not just an ingredient, but the backbone for dozens of high-value syntheses, scale-ups, and R&D wins across continents. Every kilo carries the weight of years of practice, feedback, and revision—with dedication shaping every step from raw input to final drum. That long-view commitment shows up not only in industry benchmarks but also in the calls that start with, “We need to try something different—can you help?” The answer, built on real experience, is always yes.