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N-Heneicosane

    • Product Name N-Heneicosane
    • Alias n-Heneicosane
    • Einecs 218-500-1
    • 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

    173468

    Name N-Heneicosane
    Chemical Formula C21H44
    Molecular Weight 296.58 g/mol
    Cas Number 629-94-7
    Appearance Colorless oily liquid or waxy solid
    Melting Point 40-44 °C
    Boiling Point 359 °C
    Density 0.789 g/cm³ (at 20 °C)
    Solubility In Water Insoluble
    Flash Point 177 °C
    Refractive Index 1.435 (at 20 °C)
    Odor Odorless
    Vapor Pressure 0.00017 mmHg (at 25 °C)

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

    Packing & Storage
    Packing The 25g N-Heneicosane is packaged in a sealed amber glass bottle with a screw cap, labeled with safety and product information.
    Shipping N-Heneicosane is typically shipped in tightly sealed containers to prevent contamination and evaporation. The chemical is stable at room temperature and is not classified as hazardous for transport. Standard shipping methods may be used, but it should be kept away from strong oxidizers. Always follow local, state, and international shipping regulations.
    Storage N-Heneicosane should be stored in a cool, dry, and well-ventilated area away from sources of ignition or heat. Keep the container tightly closed and protected from moisture. Store separately from strong oxidizing agents. It is important to use appropriate chemical storage containers and comply with local and national regulations for hydrocarbon storage to ensure safety and material stability.
    Application of N-Heneicosane

    Applications of N-Heneicosane in Industrial Manufacturing

    N-Heneicosane serves as a specialized hydrocarbon in multiple sectors that require high-purity, even-numbered alkanes for process control, material modification, and analytical calibration. As a direct producer, we supply N-Heneicosane for demanding industrial fields based on tightly controlled quality parameters, facilitating reliable downstream integration across diverse manufacturing categories.

    1. Reference Standard in Gas Chromatography Laboratories

    Leading analytical labs incorporate N-Heneicosane as a precise reference marker to calibrate temperature programming and retention indices in gas chromatography (GC) analyses. Its defined carbon chain improves identification accuracy for hydrocarbon mixtures and complex petroleum products across petrochemical and environmental testing. Our production ensures impurity control below 0.1%, supporting trace-level quantification in accordance with global reference protocols.

    Industry compliance standards

    • ISO 17025:2017 (Testing and Calibration Laboratories)
    • ASTM D6729 (Hydrocarbon Analysis via GC)
    • EN 15199-1:2014 (GC Analysis of Hydrocarbon Distributions)
    • Good Laboratory Practice (GLP) guidelines

    Typical usage ratio

    • Used as a reference solution at 10–100 mg/L depending on system calibration sensitivity.
    • Adjustment based on column type and detector response factors.

    Downstream process integration

    • Preparation of calibration curves for hydrocarbon analysis.
    • Verification of temperature programming in GC instrumentation suites.
    • Retention index determination in petroleum, environmental, and food analysis.

    Final product types

    • Certified analytical standards
    • Pre-mixed calibration solutions
    • Instrumental QC kits
    • Petroleum and chemical analytical reports

    2. Waxes and Paraffin Blends for Candle Manufacturing

    Candle manufacturers include N-Heneicosane in paraffin wax blends to tailor burning properties, modify crystal structure, and influence melting range stability. Its straight-chain hydrocarbon structure enhances rigidity and gloss in finished candles, while supporting reproducibility of burn rates for regulatory labeling. Regular batch testing ensures regulatory compliance and reproducibility in large-scale candle plants.

    Industry compliance standards

    • EN 15426:2018 (Sooting Behavior of Candles)
    • European Pharmacopoeia 2.2.15 (Melting Point Determination)
    • REACH Regulation (EC) No 1907/2006
    • RAL-GZ 041 (Quality Mark for Candles – Germany)

    Typical usage ratio

    • 0.5–3% by weight in paraffin-based candle formulations.
    • Adjusts according to required hardness and finish specification.

    Downstream process integration

    • Added during wax melting phase before pouring or molding stages.
    • Blending prior to dye and fragrance incorporation.
    • Monitored by on-line viscometry and crystallization profile analysis.

    Final product types

    • Decorative paraffin candles
    • Low-soot tealight candles
    • Premium sculpted candles
    • Specialty votive blends

    3. Plasticizer and Lubricant Additive in Polyolefin Processing

    Polyethylene and polypropylene compounders dose N-Heneicosane as a co-plasticizer and internal lubricant to reduce extrusion friction, increase flow, and minimize die lip buildup during wire coating and film blowing operations. Its controlled volatility and molecular uniformity make it suitable for applications where low extractables and high gloss are required, including food-contact compliant polyolefis. Batch consistency supports formulation reproducibility in high-throughput compounding systems.

    Industry compliance standards

    • FDA 21 CFR 177.1520 (Olefin Polymers for Food Contact)
    • EU Regulation No 10/2011 (Plastic Materials in Contact with Food)
    • ISO 1133 (Melt Flow Rate Measurement of Thermoplastics)
    • ISO 9001:2015 (Quality Management Systems)

    Typical usage ratio

    • 0.1–1.5% by weight in polyolefin masterbatches.
    • Formulation adjustment based on gauge, extrusion temperature, and downstream additive package.

    Downstream process integration

    • Metered into compounding mixers before pelletizing step.
    • Dispersed using twin-screw extrusion to ensure uniform distribution.
    • Performance validated via torque rheometry and surface tension tests.

    Final product types

    • Wire and cable insulation sheathing
    • Food-contact film and sheet
    • Injection-molded packaging
    • Extruded industrial films

    4. Thermal Storage Medium in Specialty Heat Transfer Systems

    Engineers designing phase-change thermal storage modules specify N-Heneicosane as a latent heat material component for temperature control in solar installations and laboratory-scale heat sinks. Its narrow melting point and high purity extend operational cycles, minimize subcooling, and support material recapture in closed-system heat exchangers. Detailed product traceability documents enable seamless plant acceptance and system validation.

    Industry compliance standards

    • IEC 60831-1 (Thermal Storage and Heat Transfer Applications)
    • UN 3295 (Hydrocarbons, Liquid, n.o.s. – Transport Classification)
    • RoHS Directive (2011/65/EU) for product safety
    • In-house QC protocols for phase-change media

    Typical usage ratio

    • 25–95% of total thermal medium mass, blended as per melting range target (38–46°C for solar or cold-chain use).
    • Proportion varies depending on design volume and target hold period.

    Downstream process integration

    • Charged into phase-change core of heat exchangers or encapsulated modules.
    • Blended with stabilizers or nucleating agents during melt cycling tests.
    • Quality verified by DSC (Differential Scanning Calorimetry) analysis.

    Final product types

    • Solar thermal storage blocks
    • Cold-chain thermal stabilizer packs
    • Laboratory heat sink modules
    • Battery thermal management units

    5. Ingredient for Hydrocarbon Test Mixtures in Lubricant Quality Assurance

    Lubricant formulators and QA laboratories incorporate this hydrocarbon into synthetic blend standards to perform reference testing for volatility profiles, solidification points, and oxidation index in both engine oil and industrial lube assessment. High chain-length parity enables simulation standards that match real-world lubricant compositions, ensuring reliability in routine and forensic QC processes. Our technical support provides traceable batch records for test reproducibility.

    Industry compliance standards

    • ASTM D2270 (Viscosity Index Calculation)
    • API Engine Oil Licensing and Certification System
    • ISO 2909 (Kinematic Viscosity of Lubricants)
    • OEM-specific lubricant test protocols (Mercedes Benz, GM, VW specifications)

    Typical usage ratio

    • 0.1–2% by weight in synthetic hydrocarbon test mixtures.
    • Calibration standards prepared corresponding to target lubricant group base stocks.

    Downstream process integration

    • Added to reference lubricant blends prior to performance and bench testing.
    • Used in routine stability, volatility, and viscosity studies.
    • Evaluated under accelerated oxidative stress protocols.

    Final product types

    • Certified in-house test mixtures
    • Reference lubricants for bench and engine tests
    • QA validation standards
    • Analysis control samples for regulatory submission
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    Competitive N-Heneicosane prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    N-Heneicosane: Bringing Reliability and Consistency to Specialty Chemistry

    Understanding N-Heneicosane from a Manufacturer’s Perspective

    N-Heneicosane stands as a straight-chain alkane with a carbon count of 21, making it a distinct member of the higher homologues found within the paraffin series. Chemically, its formula is C21H44. This product comes to life in our facility through fractional distillation and precise separation processes that set it apart from shorter (and much longer) alkane chains. These chain length and chemical properties shift its performance profile, providing a range of application-specific benefits that users ask for by name.

    Through decades of hands-on experience, our team found value in purity that goes beyond numbers on a QC sheet. In the case of N-Heneicosane, we focus on batch repeatability, chemical consistency, and manageable handling—ensuring users from R&D labs to industrial process lines can depend on the product day-in, day-out. Our customers in analytical chemistry often request this specific molecule as a reference material. The precise boiling and melting point, verified by our own in-house analysis, allow it to serve as a calibration standard in a mix of hydrocarbon markers and retention time references.

    The Difference Between N-Heneicosane and Other Alkanes

    Workers on the floor know the difference between N-Heneicosane and adjacent alkanes not only from its chemical ID but from the way it behaves in controlled and scaled operations. Lower alkanes like n-hexadecane or n-octadecane exhibit higher volatility and, usually, lower viscosity, which impacts their storage, shipping, and field usage. In contrast, N-Heneicosane continues the trend of rising melting and boiling points, moving it squarely into a temperature window preferred for certain analytical and specialty applications. For instance, in capillary GC calibrations, the chain length of N-Heneicosane gives a unique elution property that fits markers positioned in the C21 range—lengthening the retention time compared to C18 or C19 references. This precise placement plays a key role in chromatographic fingerprinting, especially in product authentication and trace impurity analysis.

    From a processing angle, longer chain alkanes such as n-docosane or n-tetracosane present increased difficulty in purification, risk of solidification during warehousing, and trickier handling due to their waxy or even rigid consistency at room temperatures. N-Heneicosane manages to balance workable melting and pour points, making it easier to liquefy for blending or introduction to closed analytical systems. This practical usability cuts down on downtimes and reduces equipment issues, a reality anyone in production can appreciate.

    Grasping the Real-World Importance of Specifications

    Every batch of N-Heneicosane faces our regular rounds of GC purity testing, and we track impurity profiles using reference standards with strong traceability. These steps go beyond hitting regulatory minimums. They make a real difference as laboratories and industrial users demand predictability—not only for accuracy, but also for downstream process stability. Regulatory pressure continues to intensify around chemical traceability and documentation, pushing the industry away from fragmented, poorly tracked stocks. Our facility approaches specification from this mindset: being clear, consistent, and reliable to support customer compliance and process validation efforts.

    We have witnessed the pitfalls of subpar documentation and fluctuating purity over the long haul. A minor contaminant overlooked during distillation can cause interruptions in thermal analysis or misreads in chromatographic calibration. The cost isn’t confined to lost product; it adds up through recalibrations, wasted time, and decreased confidence in subsequent results. This everyday reality steers us to invest in robust, sometimes laborious quality steps—well aware that frustration on the user’s end typically stems from lapses at the source plant.

    How Industries Deploy N-Heneicosane

    Research groups and commercial quality teams continually select N-Heneicosane for its sharp thermal profile and clear phase change, a property highlighted in melting point determinations and DSC calibrations. In synthetic chemistry and petrochemical labs, the molecule plays a role in providing an internal benchmark in complex hydrocarbon analyses. Its sharp peak in chromatograms allows users to anchor complex data readings, reducing the ambiguity that comes with broad or ambiguous reference compounds.

    We field requests from industries ranging from environmental laboratories to fuel additives and material scientists. For example, in evaluating wax behavior within lubricants, N-Heneicosane’s presence is used to study wax precipitation and the thermal behavior of base oils. Its visibility in analyses helps operators assess cold flow properties and wax incompatibilities in finished blends. In these scenarios, a well-characterized lot of N-Heneicosane creates data reliability when crosschecking between production batches or across global testing networks.

    Another significant use lies within the flavor and fragrance industry. Chemists here use this molecule as a chromatographic retention marker, helping standardize retention times across different instruments and labs—especially as essential oil compositions can be extraordinarily complex. The same principle plays out in food chemistry: clear, reliable markers simplify the task of identifying unknowns in edible oil and fat analysis.

    Expertise in Batch Consistency: Why It Matters

    The heart of our operation remains the vigilant control of batch-to-batch consistency. Speaking from long experience, we see how even minor drifts in distillation parameters breed significant variances. Hydrocarbon families create extra challenges because tailing and incomplete separations can hide low-level impurities. Rather than chase results after complaints come in, we lead with regular recalibrations of columns, method checks, and ongoing staff training on both the floor and in our labs. The benefits reach users in the form of dependable physical data—melting points, densities, and purity that reduces headaches during documentation or audits.

    Analytical users, in particular, can face consequences from a deviation as small as 0.1°C in melting range or a slippage in the boiling fraction. Such issues can cascade into regulatory headaches if standard materials fail to meet declared performance points. We realized early that paper compliance doesn’t equal real-world performance; only ongoing hands-on engagement catches the small slips that, left untended, balloon into big troubles down the line.

    Unpacking Real-World Challenges and Solutions in Manufacturing

    Day-to-day production brings challenges unique to long-chain alkanes. With N-Heneicosane, the risk of crystallization inside lines and processing vessels increases as temperature drops below its melting range. We tackle this with monitored heating zones and built-in thermal controls—reducing clogging and product loss. Raw material quality remains a watchpoint. Sourcing upstream fractions with minimal branching and oxygenates keeps downstream processing smooth. Our purchasing practices stick to clear sourcing agreements, thereby limiting cross-contamination risks.

    Scaling up also brings environmental and process safety into focus. While handling shorter alkanes may mean more concerns over volatility and flammability, N-Heneicosane reduces the airborne hazards but raises mechanical cleaning requirements if allowed to solidify unexpectedly. Our staff learned—often through troubleshooting—that strict temperature mapping in storage and transfer prevents hardening and potential equipment fouling. These hard-won insights now guide both SOPs and operator checklists throughout seasonal changes.

    End users often ask about differences between lab and industrial grades. In truth, meeting analytical requirements demands tighter fractionation and more rigorous purification. Industrial buyers with higher volume needs may accept slightly broader melting ranges or minuscule color variance, but we keep analytical stock on a separate, tightly controlled production line. Communicating transparently upfront prevents unwanted surprises and builds ongoing trust with both sets of customers.

    What Sets N-Heneicosane Apart, According to Real Users

    Years of feedback from customers taught us the real parameters that matter. Consistency in chemical behavior means uninterrupted instrument runs and less recalibration. Reduced residue or color drift minimizes interference in high-sensitivity readings. Where lower purity material once caused downstream failures, our upgraded process virtually eliminated such issues. N-Heneicosane now turns up on raw material lists for new research across fuel, environmental, and pharmaceutical labs.

    From the viewpoint of our factory team, the ability of N-Heneicosane to sit on shelves for longer periods (without noticeable oxidation or phase change) provides storage flexibility that plant managers appreciate. Material that pours and melts smoothly at practical temperatures eases batch operations, meaning less manual reheating or emergency maintenance.

    Looking Ahead: Sustainability and Compliance

    New pressures shape the chemical sector every year. We live in an era where end-use documentation, trace contaminant tracking, and regulatory attention push the bar ever higher. For N-Heneicosane, this means constant monitoring for new limits on sulfur, aromatics, and trace metals. Our on-site analysis connects each lot directly to supporting documentation, avoiding lags between production and shipment. As sectors such as electronics and pharmaceuticals lean further into molecular traceability, such steps shift from nice-to-have to essential.

    Long-chain paraffins such as N-Heneicosane also touch on questions of environmental responsibility. While hydrocarbon waxes present fewer acute hazards in service, all chemical operations face mounting scrutiny regarding emissions, safe disposal, and product stewardship. Years spent auditing our own practices taught us that small process tweaks—minimized venting, adapted cleaning routines, and contained storage handling—add up to long-term risk reduction. We incorporate feedback from onsite audits, customer questionnaires, and third-party reviews to keep pace with best practices.

    Our technical support team works alongside growing regulatory trends. Global markets increasingly align toward tighter chemical registration and transport documentation. We invest in ongoing staff training and procedural review, sharing what we learn at trade associations and customer meetings. Regulatory confidence demands more than paper trails; it lives in actual consistency batch after batch and in open communication about capabilities, limitations, and changes to supply lines.

    Transparency and Traceability in Today’s Market

    End users—and their customers further down the line—rarely have time or budget to chase missing or incomplete paperwork. We hold ourselves to clear, accessible data trails, linking material certifications directly to lot-specific results. Auditors and peer reviewers check not only that documents exist, but that the physical stock in the barrel lives up to its claim.

    Real-world events have shown the cost of missing links or ambiguous batch numbers: shipment delays, misplaced liability, and risk to research timelines. Holding the manufacturing process accountable tackles these issues upfront and builds long-term confidence between supplier and user.

    Customer Focus: What Experienced Users Ask For

    Repeat customers tell a consistent story: they want N-Heneicosane with well-characterized physical and chemical properties, stable in storage, and predictable in process use from drum to lab vial. Reliability is defined by how often supply aligns with expectations—not slogans or generic claims. Over the years, users in both large and small operations have shown appreciation for technical transparency—the sort that comes from experienced hands, not templated replies.

    For research environments, especially those in need of established calibration points, N-Heneicosane’s stable melting and boiling points matter in preventing analytical drift and unexpected downtime. The assurance that each delivery meets strict in-house QC reduces process interruptions and supports compliance in deeply regulated fields. We back every batch with tested certificates, not because of regulatory obligation alone, but out of day-to-day necessity that research can’t afford to gamble with foundational materials.

    Production managers, on the other hand, seek containers that don’t jam equipment or require constant supervision in storage. By controlling both the raw material streams and low-temperature shipment packaging, we cut down on field problems and feedback loops, an approach grounded in learning from each season’s challenges.

    Building On Experience: A Manufacturer’s Commitment

    Our work with N-Heneicosane isn’t just about molecules on a spec sheet. Each batch has a story tied back to real coworkers, their problem-solving efforts, and eventual customer outcomes. Knowledge gained in this sector doesn’t arise in a vacuum; it grows out of both the victories and stumbles across years of actual production runs.

    N-Heneicosane has carved out a niche in chromatography, material science, and process calibration because enough end users found that quality pays for itself through reduced downtime, fewer process corrections, and easier compliance. We measure our success by the simplicity and reliability we can build into each lot, whether it’s running in a state-of-the-art analytical lab or supporting material studies out in the field.

    This ongoing process—of calibrating, checking, and listening to both teams and customers—shapes both our product and our daily practice. Real value comes from sweat, attention to detail, and willingness to fix problems before they leave the plant. For anyone searching for an alkane of this specific length and consistency, the difference is clear: experience on the ground translates directly into product in the bottle—and outcomes in the real world.