Liquid Nitrogen, LN2, Refrigerated Liquid Nitrogen

Liquid Nitrogen (LN2) Gas | Industrial & Ultra-High Purity Medical Electronic Grade Supplier

Supplier: Wenzhou Yingyue New Materials Co., Ltd.

Product Overview

Liquid Nitrogen (LN2) is a colorless, odorless, non-flammable and inert cryogenic liquid with extremely low temperature, widely known as the most common and safe industrial cryogenic medium. As a professional manufacturer and exporter of high-purity cryogenic liquids in China, Yingyue New Materials provides full-series LN2 products covering industrial grade, food grade, medical grade, laboratory grade and ultra-high purity grade, with purity ranging from 99.9% to 99.9999% (6N). Adopting professional air separation liquefaction and deep purification technology, our products achieve ultra-low impurity indicators, strictly complying with GB/T8979-2008 national standards and international industrial gas specifications. We support diversified global export packaging and customized purity solutions, providing stable and high-quality cryogenic liquid products for global industrial manufacturing, medical treatment, food processing and semiconductor enterprises.

Key Product Specifications

Purity Grade & Impurity Control

We provide full-gradient purity liquid nitrogen to meet different industrial, medical, food and high-end precision manufacturing scenarios, with strict ultra-low impurity control and batch-by-batch COA certification for all grades:

1. Industrial Grade (99.9% - 99.99%)

Suitable for conventional industrial manufacturing, metal cryogenic treatment, pipeline pressure testing and atmospheric protection. With stable conventional impurity indicators, low moisture and low oxygen content, it features high cost performance and meets the mass production demand of general industrial scenarios. Controlled impurities: Oxygen ≤100 ppm, Moisture ≤20 ppm, no toxic and harmful impurities.

2. Food & Medical Grade (99.99%+)

Compliant with food safety and medical industry standards, widely used in food quick freezing, fresh-keeping, medical cryotherapy and biological sample preservation. Strict impurity removal treatment is adopted to ensure no harmful residues, which is safe and non-toxic for direct contact with food and biological samples.

3. Ultra-High Purity Grade (99.999% - 99.9999%, 5N/6N)

High-end grade for laboratory research, semiconductor manufacturing and precision electronic processing. After secondary liquefaction and deep adsorption purification, impurities are strictly controlled: Oxygen ≤10 ppm, Carbon Dioxide ≤5 ppm, Methane ≤5 ppm, Moisture ≤3 ppm, ultra-low trace impurities, fully meeting the requirements of high-precision experiments and electronic manufacturing processes.

Physical & Chemical Properties

Anhydrous Liquid Nitrogen is a stable inert cryogenic liquid with excellent physical and chemical stability under normal temperature and sealed storage conditions. It is colorless, transparent and odorless in liquid state, with an extremely low boiling point of -195.8℃. It has an extremely high vaporization expansion ratio, with 1 liter of liquid nitrogen vaporizing into 695-700 liters of pure nitrogen gas at room temperature and pressure.

Chemically, LN2 is non-flammable, non-explosive, and difficult to react with most metals, chemicals and organic substances, with good inert protection performance. It vaporizes rapidly when exposed to room temperature, producing a large amount of clean nitrogen vapor. The liquid density is 0.808 g/cm³ at -196℃, and the gaseous density is 1.165 kg/m³ under standard temperature and pressure. Long-term stable storage is available with low natural evaporation loss.

Packaging & Transportation Solution

We configure differentiated standard cryogenic packaging for global regional markets, supporting small-batch trial orders and large-scale batch supply, with professional cryogenic logistics to ensure product stability during transportation:

1. Standard Dewar Flask Packaging
Conventional 10L, 20L, 30L, 50L, 100L insulated Dewar flasks, suitable for laboratory testing, small-scale medical and food processing scenarios, convenient for transportation and on-site use.

2. Large Cryogenic Insulated Tank
200L-5000L large-capacity cryogenic storage tanks, suitable for factory long-term fixed-point use and large-volume industrial production, with low evaporation loss and durable heat insulation performance.

3. Global Customized Packaging
Support customized tank capacity and special insulation packaging according to customer demand, adapting to special logistics and storage conditions in Europe, America, Southeast Asia and other regions.

4. Professional Cryogenic Transportation
All products are transported by special cryogenic liquid vehicles, complying with UN1977 international dangerous goods transportation standards. Avoid violent collision and high-temperature exposure during transit to ensure product safety and stability.

Main Applications

Liquid Nitrogen is an indispensable core cryogenic medium and inert protective gas in modern industry, medical treatment, food and electronic manufacturing industries:

1. Industrial Manufacturing
Used for metal material cryogenic hardening, precision parts cooling and shaping, industrial furnace atmosphere protection, pipeline pressure test and leakage detection, improving material performance and production precision.

2. Medical & Biological Industry
Applied for clinical cryosurgery, human tissue and cell cryopreservation, vaccine and biological sample low-temperature storage, providing ultra-low temperature environment for biomedical research and medical treatment.

3. Food Processing Industry
Used for quick freezing of fruits, vegetables, seafood and meat products, low-temperature fresh-keeping of finished food, and food low-temperature sterilization, locking food nutrition and extending shelf life.

4. Laboratory & Scientific Research
Served as low-temperature cooling medium, inert protective gas and reaction auxiliary gas for chemical experiments, new material research and instrument constant temperature testing.

5. Electronic & Semiconductor Industry
Used for semiconductor wafer cooling, electronic component low-temperature performance testing, precision welding and packaging protection, ensuring high-precision and dust-free production of electronic products.

Product Advantages

✅ Full Purity Grade Coverage: Complete grades from industrial 99.9% to ultra-high 6N purity, covering industrial, medical, food and electronic high-end scenarios

✅ Strict Impurity Control: Adopts advanced air separation and deep purification technology, ultra-low moisture and oxygen content, stable batch consistency

✅ Complete Qualification Documents: Each batch is equipped with official COA quality test report and MSDS safety data sheet, supporting global customs clearance and third-party testing

✅ Safe & Environmentally Friendly: Inert and non-toxic, no pollution, safe for industrial production and biological contact, compliant with international environmental protection standards

✅ Customized Service: Support customized purity parameters, packaging capacity and long-term stable exclusive supply for global customers

✅ Stable Supply Capacity: Factory direct supply with sufficient inventory, meeting small-batch trial order and large-scale bulk procurement demand

Safety & Export Compliance

All Liquid Nitrogen products comply with UN1977 international transportation standards and GB/T8979-2008 national industry specifications. We provide complete export documents including MSDS safety data sheets, batch COA test reports and enterprise qualification certificates. We provide professional on-site operation, storage and transportation safety guidance to help global customers realize safe use and smooth customs clearance. All products undergo strict batch testing to ensure stable quality and full compliance with global import safety standards.