Nitrous Oxide Manufacturers in China and Their Core Product Lines

Nitrous oxide (N₂O), also known as laughing gas, is an extremely common chemical compound with a myriad of uses ranging from food and beverage production to industrial production. In foods, N₂O is widely used in the whipping of cream, foam, and carbonation of beverages. In industrial settings, it can be used as an oxidizer in reactions, welding, and even semiconductor production.

China is a significant segment of the worldwide supply chain of nitrous oxide and is home to numerous well-known manufacturers capable of providing food-grade and industrial-grade nitrous oxide. For businesses in pursuit of reliable suppliers, having information on the major players in the China market is crucial. This article provides a summary of some major Chinese manufacturers of nitrous oxide, including their product, certification, and application.

Major Nitrous Oxide Manufacturers in China

The landscape of N₂O production in China is competitive, featuring specialized gas companies as well as large chemical enterprises. While many players exist, a few have gained significant traction and global recognition for their focus on high-purity and food-grade nitrous oxide, particularly for the widely used cream charger market (E942).

ROTASS

ROTASS is a well-known manufacturer of food-grade and industrial nitrous oxide. Established with a focus on high-purity products, ROTASS produces N₂O in various package formats, from 8g cream chargers, 580g refill tanks, to larger cylinders between 2kg and 10kg.

• Product Range: Food-grade cream chargers, refill tanks, industrial cylinders.
• Certifications: E941/E942 food additive standards, ISO 9001, CE.
• Applications: Food and beverage (whipped cream, coffee, soda), industrial applications.

ROTASS emphasizes unyielding purity and conformity with world safety standards and is therefore suitable for both national and international sale.

Shanghai Huayuan Gas

Founded in 1992, Shanghai Huayuan Gas is among China’s leading manufacturers of nitrous oxide. Shanghai Huayuan Gas has food-grade and industrial-grade N₂O production with a focus on high purity and stable quality control.

• Product Range: Industrial cylinders of N₂O, food-grade gases in beverage and dessert production.
• Certifications: ISO 9001, ISO 14001, ISO 45001.
• Applications: Food production, industrial uses, laboratory experiments, and export.

Shanghai Huayuan Gas specializes in handling big industrial orders and has acceptable products for the international market.

Liss / Mosa

Liss and Mosa are notable Chinese suppliers that provide a variety of nitrous oxide products for both food and industrial applications. While not as widely recognized internationally as ROTASS or Huayuan, these manufacturers cater to small and medium-sized enterprises seeking reliable N₂O solutions.

• Product Range: 0.95L cylinders, 8g cream chargers, industrial-grade tanks.
• Certifications: Partial ISO and CE compliance depending on product lines.
• Applications: Food and beverage preparation, industrial applications, and laboratory use.

These brands offer more budget-friendly options, making them attractive for businesses with moderate volume requirements.

Product Specifications Comparison

The following table provides a comparison of product types, purity levels, and typical applications among these manufacturers:

Manufacturer	Product Type	Purity	Capacity	Applications
ROTASS	Cream Charger	≥99.99%	8g	Food, Beverage
	Cylinder	≥99.99%	200-3000g	Food, Beverage
	ISO tank	≥99.99%	20 tonnes	Industrial, Food
Shanghai Huayuan Gas	Industrial N₂O	≥99.9%	10–50L	Industrial, Lab, Export
	Food-grade N₂O	≥99.9%	0.95L, 2kg	Food, Beverage
Liss / Mosa	Food/Industrial	≥99.95%	0.95L / 2kg	Food, Beverage, Industrial

This table illustrates that most manufacturers offer a range of products suitable for both food and industrial applications. Purity levels generally exceed 99.9% for food-grade gases, ensuring safety and quality.

Applications of Nitrous Oxide 

The extensive use of N2O in different industries globally is the prime motivator for the development of China’s market. Its uses are vast and unmatched.

• Medical and dental: N2O is a standard component of medical care. It is administered as a mild general anesthetic and strong analgesic (painkiller), typically in combination with oxygen (for example, 50% nitrous oxide and 50% oxygen), for sedation during dental and obstetric procedures. Due to its rapid onset and short duration of action, it is an excellent choice for minor surgeries.

• Beverages and food (Food Additive E942) : It is one of the most widely used uses on the planet. N2O is used as an aerosol propellant in cans of cream and dispensers of cream. It easily dissolves in cream. When released, by changing phase, it froths up the cream, creating a light and airy texture. It’s also used by professional chefs to make it easy to moisten and create cooking foams and mousse.

• Automotive and Motor Sports (NOS) : In racing cars, N2O is introduced into the intake manifold of the engine. In combustion, heat disintegrates N2O molecules into additional oxygen, so more fuel can be combusted and a huge power boost.

• The electronics industry: High-purity N2O is used to make microchips and semiconductors. It is used as an oxidant in chemical vapor deposition (CVD) to help form a thin insulating layer of silicon dioxide.

• Chemical manufacturing: Nitrous oxide is a major by-product that is generated through the process of manufacturing certain chemicals such as adipic acid (used in manufacturing nylon) and nitric acid, but it is extremely hard to handle. Some Chinese manufacturers are investing in new catalytic emission reduction technology in order to cut these hazardous greenhouse gas emissions.

Choosing the Right Manufacturer

When choosing a nitrous oxide manufacturer, caution needs to be exercised, especially in the context of global safety concerns over products and environmental controls.

Designate purity to be required: For food and medicinal use, the nitrous oxide must be food grade (E941/E942). Don’t sacrifice purity for cost.

Verification, certification and compliance

• Food grade: Obtain HACCP and ISO9001 certifications, along with third-party laboratory reports, confirming there are no toxic impurities.
• Medical grade: Should be certified, i.e., ISO13485 (Medical Device Quality Management).
• Environment: In case the manufacturer is a big chemical firm, please check if it utilizes nitrous oxide emission reduction technology.
• Evaluate logistics ability: With the type of natural gas transportation involved, check the capability of the manufacturer to provide container sizes needed (from 8g up to ISO tanks) and global shipment experience, including customs clearance and hazardous goods legislation.

By assessing these attributes, business organizations can choose suppliers who can satisfy their business needs and regulatory obligations.

Final Thoughts

China boasts diverse nitrous oxide manufacturers that can serve food-grade and industrial-grade markets. Key players include ROTASS, Shanghai Huayuan Gas, and Liss/Mosa, each of which offers various product lines, certifications, and applications.

Product information knowledge, purity grade, and certification aid firms in their selection process while buying N₂O for use in food processing, carbonating drinks, or business purposes. Regardless of whether small-sized cream chargers or large business cylinders are required, Chinese manufacturers have diverse products to meet such needs.

Choosing the right supplier assures food safety, regulatory requirements, and uniform quality, all of which are needed for food as well as industrial applications.