YIGAS Gas Supply

Stable Supply Chain: Our helium sources originate from Qatar and the United States, ensuring reliable supply.

Helium as Core Business: With significant investments, our Zhongshan-based factory spans 13,000 m² and boasts an annual liquid helium production capacity of 300 tons.

China’s Most Advanced Facilities:

Equipped with the nation's most advanced liquid helium and helium filling production lines.

Certified under the ISO 9001:2008 Quality Management System.

Utilizes internationally recognized "filling island-style" production lines.

Gaseous helium is ideal for semiconductor lithography, fiber-drawing, leak detection, carrier gas in GC, and balloon inflation. Liquid helium is dedicated to MRI magnet cryo-cooling, superconducting magnet maintenance, and low-temperature physics research.

Ethylene

Ethylene, a colorless, slightly sweet-smelling hydrocarbon (C₂H₄), is the backbone of modern petrochemical industries. As the simplest alkene with a reactive carbon-carbon double bond, it exhibits high flammability (explosive range: 2.7–36% in air) and serves as a critical building block for synthetic chemistry. Used as feedstock for LLDPE/HDPE, epoxy ethane and ethanol production. Compatible with swing-reactor and high-pressure tubular processes. Our ethylene is supplied in high-purity grades (≥99.9% polymer-grade, ≥99.5% chemical-grade) via ISO-certified cylinders.

Propane

Propane, a colorless, odorless, and highly flammable alkane (C₃H₈), is a cornerstone of liquefied petroleum gas (LPG) with a boiling point of -42°C, enabling efficient storage and transport as a liquid under moderate pressure. Propane is renowned for its high calorific value (50.33 MJ/kg) and clean combustion properties, making it an ideal choice for high-temperature brazing, metal cutting, forklift fuel, and LPG blending. Supplied in ISO-certified cylinders or bulk tanks.

Sulfur Dioxide

Sulfur dioxide (SO₂), a colorless gas with a pungent odor and high water solubility, is a versatile inorganic compound widely used in chemical manufacturing, pulp and paper processing, and as a food desiccant and preservative. It is also commonly used in sulfuric acid production and in the desulfurization of natural gas and oil. With a boiling point of -10°C, it serves as both a reactive intermediate and a functional additive, though its environmental impact as a primary air pollutant requires stringent handling. Our SO₂ is supplied in ISO-certified cylinders.

Ethylene Oxide

Ethylene oxide (C₂H₄O), a colorless, flammable gas with a faintly sweet odor, is a highly reactive epoxide critical to modern industrial and medical applications. It is primarily used for the cryogenic sterilization of disposable syringes, endoscopes, and pacemakers. With a boiling point of 10.4°C, it transitions to a liquid below this temperature, exhibiting excellent miscibility with water, ethanol, and ether. Its explosive range (3–100% in air) and carcinogenicity (Class 1B per IARC) necessitate stringent handling under NFPA 704 protocols (Health 4, Flammability 3). Supplied in ISO-certified cylinders or nitrogen-diluted blends.

Methane

Methane (CH₄) is a colorless, odorless, and non-toxic organic compound with distinct physical characteristics. Under standard temperature and pressure (STP), methane exists as a gas with a density approximately 0.55 times that of air, making it lighter and minimally soluble in water. It transitions to liquid at -161.5°C (boiling point) and solidifies at -182.5°C (melting point), remaining gaseous under ambient conditions. Methane is commonly used as a fuel for heating, cooking, and power generation. Because it is an odorless hydrocarbon gas, it is often mixed with substances that have an odor to report leaks or spills in pipes and systems.

Argon

Argon, a noble gas constituting ~1% of Earth’s atmosphere, is a colorless, odorless, and non-toxic inert gas with unmatched chemical stability (reaction index: 0.0001 at 25°C). Argon is widely used in welding, lighting, food and beverage processing, and laboratory work due to its inertness. Our argon is available in gaseous and cryogenic liquid forms, achieving ≥99.999% purity (Grade 6.0) for mission-sensitive applications.

Carbon Dioxide

Carbon dioxide (CO₂), a colorless, odorless gas naturally present in Earth's atmosphere, is integral to climate regulation through infrared radiation absorption. We supply two specialized grades to meet diverse industrial demands. Food-grade carbon dioxide is used in the food and beverage industry for applications such as beverage carbonation, food packaging and preservation, and supercritical carbon dioxide extraction. In addition, high-purity carbon dioxide is used in advanced manufacturing, healthcare, and laboratory applications.

Sulfur Hexafluoride

Sulfur hexafluoride (SF₆), a colorless, odorless, and non-flammable inorganic gas (molecular weight: 146.055), is renowned for its exceptional dielectric strength and thermal stability. SF₆ is commonly used as an electrical insulator in high-voltage equipment. It is also used in metal processing and casting, semiconductor etching and cleaning agents, and environmental monitoring. With a density of 6.0886 kg/m³ at 20°C (5x denser than air) and octahedral molecular geometry, SF₆ exhibits unmatched chemical inertness below 180°C, ensuring compatibility with electrical materials.