Table of Contents
- Introduction to Liquid Nitrogen Gas
- 1. YIGAS GROUP – Trusted Industrial Gas Manufacturer
- 2. Online Chemical and Gas Suppliers
- 3. Local Welding and Gas Dealers
- 4. Specialty Science and Lab Suppliers
- 5. University or Institutional Networks
- 6. Medical and Cryogenic Gas Suppliers
- Safety and Handling Considerations
- Summary Table of Suppliers
Introduction to Liquid Nitrogen Gas
Liquid nitrogen gas (LN2) is a cryogenic liquid with a boiling point of −196°C. It is widely used in industries like food freezing, medical cryopreservation, electronics cooling, and more. If you’re looking to source this versatile product, understanding where to buy it safely and legally is crucial.
1. YIGAS GROUP – Trusted Industrial Gas Manufacturer
YIGAS GROUP is one of China’s most established suppliers of industrial gases, with a strong footprint in both domestic and global markets. Founded in 1993 and restructured into YJIA GROUP in 2012, the company has earned the trust of over 5,000 customers and boasts assets exceeding RMB 500 million.
Why Choose YIGAS GROUP?
- 30+ Years of Experience: Proven industry leadership and long-term expertise
- Certifications: ISO9001 quality system & OHSMS18000 safety system certified
- Wide Distribution: Network across the Pearl River Delta and international markets
- Reliable Reputation: Awarded “Honoring Contracts and Keeping Promises” by Chinese regulatory agencies
- Product Range Includes:
- Liquid Nitrogen
- Helium Gas
- Ethylene Gas
- Methane Gas
- Nitrogen Monooxide
Best For: Industrial buyers, research labs, and international distributors looking for bulk orders and trusted service.
2. Online Chemical and Gas Suppliers
Numerous specialized B2B websites and chemical supply chains allow customers to order liquid nitrogen gas online. These platforms cater to both small-scale and large-scale needs and often include safe shipping protocols and MSDS documentation.
Top Examples
- Airgas.com
- Alibaba.com (for international manufacturers)
- Grainger Industrial Supply
- LabSupply or Fisher Scientific (for research quantities)
Best For: Businesses and institutions with varying demands looking for convenience and verified logistics.
3. Local Welding and Gas Dealers
Many local businesses that sell welding equipment also stock cryogenic gases like LN2. These locations often cater to small businesses, metalworkers, or medical users.
Advantages
- Quick Pickup: No shipping delay
- Lower Minimum Orders: Buy as little as a few liters
- Local Service: Good for refillable dewars or exchange programs
Best For: Small labs, garages, or specialized technicians who need immediate access.
4. Specialty Science and Lab Suppliers
Academic and scientific labs often source LN2 through trusted lab supply vendors. These companies specialize in packaging, safety compliance, and calibration services.
Trusted Lab Providers
- Thermo Fisher Scientific
- Sigma-Aldrich (MilliporeSigma)
- VWR International
Best For: Universities, biotech labs, and high-precision applications requiring certified LN2.
5. University or Institutional Networks
Some educational institutions maintain bulk tanks of liquid nitrogen and offer internal sourcing for departments. In certain regions, these can be accessed through vendor-managed inventory systems.
Pros
- Cost-Effective: Shared resource reduces cost
- Convenient: Located on campus or nearby
- Integrated Billing: Linked to departmental accounts
Best For: Graduate researchers and educational projects under faculty supervision.
6. Medical and Cryogenic Gas Suppliers
LN2 is used widely in dermatology, fertility clinics, and veterinary applications. Suppliers of medical-grade cryogenic gases are licensed and regulated for purity and safety.
Notable Medical Gas Brands
- Praxair (now part of Linde Group)
- Air Liquide Healthcare
- Messer Medical
Best For: Medical facilities requiring FDA/CE certified gas for patient treatment or biological storage.
Safety and Handling Considerations
Before purchasing and using LN2, understand the critical safety protocols to prevent accidents or injury.
Handling Guidelines
- Use Proper Dewars: Always store LN2 in certified cryogenic vessels
- Protective Gear: Wear insulated gloves, face shields, and lab coats
- Ventilation: Use only in well-ventilated areas to prevent asphyxiation
- Transport Regulations: Follow DOT/IATA rules when shipping
Note: Never store LN2 in sealed containers without pressure relief.
Summary Table of Suppliers
| Supplier | Type | Key Advantages | Best For |
|---|---|---|---|
| YIGAS GROUP | Industrial Manufacturer | 30+ years experience, ISO & OHSMS certified, global distribution | Large-scale industrial or export buyers |
| Online Suppliers (Airgas, Alibaba) | Online Marketplace | Easy ordering, shipping options, scalable volumes | Small businesses, labs, bulk importers |
| Local Welding Shops | Brick & Mortar | Immediate pickup, refillable containers, local support | Technicians, artists, local users |
| Lab Supply Vendors | Scientific Supplier | Lab-grade purity, compliance, secure packaging | Universities, biotech, R&D labs |
| University Networks | Internal Supply Chain | Low cost, convenient access, centralized billing | Academic researchers and students |
| Medical Gas Suppliers | Healthcare Distribution | Regulated quality, CE/FDA compliance, cryogenic equipment | Hospitals, clinics, fertility labs |
