|
HS Code |
895666 |
| Chemical Formula | N2 |
| Molecular Weight | 28.01 g/mol |
| Appearance | colorless liquid |
| Boiling Point | -195.79°C |
| Melting Point | -210°C |
| Density | 0.807 g/cm³ at boiling point |
| Odor | odorless |
| Flammability | non-flammable |
| Solubility In Water | slightly soluble |
| Specific Heat Capacity | 2.04 kJ/kg·K |
| Vapor Pressure | 101.3 kPa at -195.8°C |
| Critical Temperature | -146.9°C |
| Critical Pressure | 3.40 MPa |
As an accredited Liquid Nitrogen factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
|
Purity 99.999%: Liquid Nitrogen with purity 99.999% is used in semiconductor fabrication, where ultra-high purity ensures contamination-free processing. Cryogenic Temperature (-196°C): Liquid Nitrogen at cryogenic temperature (-196°C) is used in biological sample preservation, where rapid freezing minimizes cellular damage. Boiling Point (-196°C): Liquid Nitrogen with a boiling point of -196°C is used in cryosurgery, where instant tissue destruction provides precise removal of lesions. Flow Rate 10 L/min: Liquid Nitrogen with a flow rate of 10 L/min is used in food freezing tunnels, where efficient throughput ensures rapid and uniform product freezing. Low Viscosity: Liquid Nitrogen with low viscosity is used in superconducting magnet cooling, where efficient heat transfer maintains operational stability. Stability Temperature Range (-200°C to -180°C): Liquid Nitrogen with a stability temperature range of -200°C to -180°C is used in vacuum chamber cooling, where constant temperature control optimizes experimental accuracy. Storage Pressure 2 Bar: Liquid Nitrogen stored at 2 Bar is used in inert gas blanketing for chemical reactors, where oxidation risks are minimized. Dew Point < -150°C: Liquid Nitrogen with a dew point below -150°C is used in pharmaceutical lyophilization, where ultra-dry conditions enhance product stability. High Thermal Conductivity: Liquid Nitrogen with high thermal conductivity is used in metal hardening processes, where rapid quenching increases surface hardness. Density 0.808 g/cm³: Liquid Nitrogen with a density of 0.808 g/cm³ is used in cryogenic grinding, where efficient cooling prevents material degradation. |
| Packing | The packaging is a 10-liter insulated stainless steel Dewar flask, clearly labeled "Liquid Nitrogen," featuring safety warnings and secure sealing. |
| Container Loading (20′ FCL) | For Liquid Nitrogen, a 20′ FCL (Full Container Load) typically holds insulated dewars or tanks, ensuring secure, temperature-controlled shipping. |
| Shipping | Liquid nitrogen is shipped in insulated, pressure-relief containers such as Dewar flasks, cryogenic tanks, or cylinders. These containers prevent rapid evaporation and pressure build-up. Shipping must comply with hazardous material regulations, including clear labeling and secure handling, to ensure safety during transport due to its extremely low temperature and expansion risk. |
| Storage | Liquid nitrogen is stored in specialized insulated containers called Dewar flasks or cryogenic tanks. These vessels are designed to minimize heat transfer, preventing rapid evaporation. They are equipped with pressure-relief valves to safely vent excess gas. Storage areas should be well-ventilated to prevent the buildup of nitrogen gas, which can displace oxygen and pose suffocation hazards. |
| Shelf Life | Liquid nitrogen does not have a fixed shelf life; it evaporates over time, depending on storage conditions and container insulation. |
Competitive Liquid Nitrogen prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615365186327 or mail to sales3@ascent-petrochem.com.
We will respond to you as soon as possible.
Tel: +8615365186327
Email: sales3@ascent-petrochem.com
Flexible payment, competitive price, premium service - Inquire now!
Standing in the plant, listening to the deep thrum of the air separation units and watching pure liquid nitrogen pour into insulated tanks, I remember the early days when we faced hard questions about scaling, safety, and logistics. Our team has walked a road paved by technical improvements, market changes, and the growing reach of industries depending on this product. Over the years, we have learned that the character and quality of liquid nitrogen depend not only on raw material purity and process control but also on tight collaboration across engineering, maintenance, and logistics.
Our air separation facility draws in the atmosphere around us—ordinary air that contains roughly 78% nitrogen. We rely on cryogenic distillation. This means cooling and compressing the air until we can split off the gases by boiling point. Nitrogen boils at -196°C, a temperature few other substances reach in everyday engineering. Liquid nitrogen leaves our distillation columns colorless, odorless, and pure, filling our storage vessels at the standard industrial model—typically 99.999% purity.
Each shipment relies on attention to specification—pressure, purity, and temperature. Our standard model for bulk delivery, Liquid Nitrogen Grade 5.0, moves at a pressure of about 22 psi, packaged into cryogenic tankers that hold from 1,000 to 20,000 liters. Our smaller dewars and microbulk solutions serve labs, dental offices, and research clients. With larger customers, we install on-site tanks and automated fill monitoring, meaning no guesswork, just regular supply adjusted for real-world usage.
We understand from firsthand experience that one gap in supply can disrupt a hospital’s medical gas system, freeze a pharmaceutical batch, or paralyze food processing operations. This drives us to maintain backup storage, redundant control systems, and multiple delivery lanes. Plant engineers monitor levels and temperatures around the clock. We schedule trucks with redundant routes and partner with specialized transporters so no delay stalls a customer’s operation. Challenges crop up: pipeline leaks, pump maintenance, and regulatory changes call for more than just technical know-how—they demand problem-solving learned through seasons of round-the-clock support.
Our product is not a generic bullet point in a distributor’s list. What we offer starts with accountability. Every lot number ties back to a production log and lab report. Pure nitrogen is essential for controlled environments. We carry out frequent gas chromatography checks. Plants running precision semiconductor manufacturing use our high-grade batches for cooling and blanketing, trusting that oxygen, CO2, and moisture contaminants remain far below warning thresholds. For medical applications, we keep detailed records and meet validated traceability protocols required by pharmacists and biobanks.
Packaging plays a key role in maintaining product properties. Industrial users work with our vacuum-insulated tankers and piping—this infrastructure blocks heat ingress and stops boil-off gas from creating unnecessary losses. Food processors often use smaller fill cylinders with fast-connect couplings for freezing berries, meat, or ready meals. By choosing the right model and delivery arrangement, we cut waste and energy use.
Customers in food technology freeze and transport seafood, vegetables, ice cream, and more, locking in freshness few alternatives can match. In our plant, we’ve frozen strawberries within seconds, making clear the difference liquid nitrogen makes versus conventional freezing: ice crystals stay tiny, so the food keeps a better texture and taste. In medical fields, transplant banks and IVF laboratories count on fast cooling for sensitive tissues and biological samples. Success here depends on flawless cold storage—cryopreservation at these temperatures stops cell metabolism and decay.
Metallurgy shops and foundries use blast hoses to harden metals, shrink-fit components, and prepare tools for cryogenic grinding. A steady supply of liquid nitrogen improves yield, material characteristics, and cost control. Landscaping and plumbing contractors sometimes use our cylinders for pipe freezing, letting them make repairs or upgrades without shutting down entire systems. We’ve seen research universities plan experiments only feasible with liquid nitrogen—superconductivity, quantum computing prototypes, and rapid material testing run on the back of a smooth supply chain.
Delivering the product straight from our production tanks to the end-user involves vigilance. A missed seal, poor insulation, or valve mix-up means rapid evaporation—“boil-off” in our terms. We recommend stainless-steel piping and pressure-relief valves to every client, and our engineers walk new customers through site layouts and safety plans. Internally, we monitor dewars for vacuum breaks by watching temperature, pressure, and holding time trends, flagging any unusual boil-off patterns for inspection before they can impact customers. Our experience has shown that preventive maintenance saves money and downtime for everyone.
We work to lower the environmental footprint of all operations. Plant power comes largely from a mix of renewable and local sources, reducing lifecycle emissions for every kilogram of liquefied nitrogen produced. Open-loop systems vent nitrogen safely to the atmosphere—a responsible practice, as nitrogen itself forms 78% of air—yet we still aim to recover and recycle boil-off, especially in large installations. Bulk users in food and beverage recover refrigeration value by integrating exhaust streams into cold storage. Even our older production lines have been upgraded with energy-efficient compressors and heat exchangers, and every improvement makes its way through our risk and energy audits.
Industrial nitrogen liquefaction involves significant power draw. By maximizing efficiency (cold box insulation, low-leak valves, batch production cycles), we cut kilowatt hours per liter delivered. Waste heat supports adjacent operations in our larger plants or feeds into local heating systems. As experts, we look for these synergies, because nothing about our business succeeds if we stay static.
We field questions from engineers and buyers comparing nitrogen with liquid oxygen, argon, or helium. Nitrogen serves more uses, delivers at lower costs, and avoids many hazards of other cryogenic fluids. Helium is prized for MRI cooling and space tech but costs over ten times as much and remains in global short supply. Liquid oxygen, useful for rocket fuel and steelmaking, brings its own risks—high flammability and stricter handling needs.
Nitrogen offers key advantages: abundant raw material, stable storage, and inertness. In food, pharmaceuticals, and metals, its non-reactive properties make it the best choice for freezing, purging, and blanketing. Our product requires less stringent site safety than oxygen or hydrogen. No specialized gas detectors or flameproof infrastructure need to be added. Even in emergencies, spilled nitrogen evaporates directly to air without leaving residues. Still, all staff, from drivers to plant techs, train and certify on liquid handling because -196°C burns are serious business.
As a manufacturer, we receive urgent calls during storms or power outages. One memory stands clear: midwinter, a hospital’s supply contract lagged, and our team rerouted two tankers overnight, preventing disruptions in liquid nitrogen needed for respiratory and cryotherapy equipment. These situations reinforce why plant uptime, backup plans, and clear lines of communication across teams are so essential.
Training programs and safety drills ensure no one forgets the practical risks. Nitrogen’s extreme cold can freeze skin in a moment. Open vessels create asphyxiation risks in confined or poorly ventilated spaces. From years in the business, we insist on practical demonstrations, not just manuals and signs on the wall. Our techs walk new users through the safe use of transfer hoses and pressure release mechanisms, sharing stories of both what can go wrong and how to prevent it.
Many customers approach us about integrating liquid nitrogen directly into their production lines. Food customers upgrade manual filling stations to automated injection with temperature and flow control tied into their processing software. We design custom fill skids or retrofit delivery manifolds, drawing on field data and customer feedback. Less downtime, fewer manual steps, and faster processing mean more value for our partners and less product wasted.
We invest in R&D, not just to deliver higher-purity or larger volumes but to answer new questions. With increasing demand for precision cooling in electronics and quantum computing, the focus on micro-leak detection, better insulation, and automation keeps evolving. Several times, our plant teams have worked directly with university researchers to create new handling protocols and shipment containers for sensitive projects.
Digital monitoring is changing how we run both the plant and customer sites. Remote tank-level sensors and mobile apps permit users to anticipate shortages days ahead or spot abnormal consumption—a nod to the move toward predictive maintenance. Strong feedback loops from daily operations reach our engineering departments, nudging process upgrades and batch scheduling improvements each season.
Pharma and biotech firms audit our processes twice a year, validating cleaning, filling, and sampling protocols. These industries keep raising requirements: tighter controls on trace contaminants, more documentation, and routine requalification. Some batches now include additional filtration and polishing steps, with real-time monitoring from the control room to the loading dock. This evolution means significant investment—from laboratory equipment to staff training. Still, our reputation and partnership with sensitive sectors ride on these practices.
Aerospace, semiconductor, and energy clients expect similar transparency. Data loggers track temperature and vibration for every batch shipped. In developing custom blends or supply solutions, we document every handoff and valve check. Mishandling or deviation from the line doesn’t just mean lost revenue; it can endanger lives and contracts. As a direct manufacturer, this accountability falls entirely on our shoulders.
Beyond specs, the actual experience of working with liquid nitrogen comes from living with the material in a production setting. Tank valves frost over in humid weather, hoses stiffen and crack, and sensors occasionally stick. Our maintenance staff anticipate seasonal variations and keep hard-to-source spares stocked. Hospital staff thank us by name after successful overnight deliveries, and food processors call for advice on optimizing rapid-freezing time without sacrificing throughput.
We take every complaint, no matter how small—slow fill, unexpected pressure loss, truck lateness—directly, because each incident reveals practical points for improvement. Years of feedback have driven us to redesign gas venting assemblies, refine delivery schedules, and offer night-time phone support for critical environments.
Some ask whether smaller cylinders or automated dewars fit their needs best. We share real numbers from other customers in similar industries. For example, university labs running low-volume research get better cost control with our microbulk solution—fewer manual refills, less vented waste, and more stability in internal temperatures.
Equipment compatibility often comes up. Not all hoses, seals, and tanks handle -196°C equally. We supply detailed compatibility sheets and list supplier-tested parts, but more importantly, we teach by showing what does and doesn’t work in the field. This extends to issues like vapor lock, fill station icing, and exhaust routing. Each solution builds from both textbook theory and practical lessons from site visits.
Liquid nitrogen earns its value day after day in industries where controlled temperatures, reliable freezing, or inert environments drive quality and innovation. Our focus on quality, safety, fit-for-purpose delivery, and consistent customer support defines what makes us different as a manufacturer. Problems crop up—a cracked valve, a delayed order, or a process change at a user’s plant—and we solve them through experience, best practice, and direct communication.
Our journey with liquid nitrogen has revolved around reliability, integrity, teamwork, and a restless attention to real-world demands. From the raw feed coming into our plant, through cryogenic distillation and distribution, to the chilled pipes and holding tanks at hospitals, factories, and research labs, every step carries a lesson. For us, manufacturing liquid nitrogen never stops at meeting a specification sheet. It’s about earning trust, day after day, through expertise, adaptability, and the discipline that only a producer can claim.