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Methane Gas: Properties and Applications
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.
Chemically, methane demonstrates notable stability, showing low reactivity with strong acids, bases, or oxidizing agents. However, under specific conditions such as UV exposure or elevated temperatures, it undergoes characteristic reactions:
- Substitution reactions: Reacts with halogens (e.g., chlorine) to form halogenated derivatives like chloromethane.
- Oxidation (combustion): Burns completely in oxygen to yield carbon dioxide (CO₂) and water (H₂O), releasing significant energy.
- Thermal decomposition: At high temperatures (>1000°C), methane decomposes into carbon black and hydrogen gas (H₂), a critical process in industrial carbon production.
This unique combination of stability and reactivity makes methane a versatile compound for applications ranging from fuel production to chemical synthesis.
| Industrial grade methane | Industrial grade methane | Electronic Grade Methane | |
| Specification | 99.9% | 99.99% | 99.999% |
| H2 | ≤ 50 ppm | ≤ 10 ppm | ≤ 0.5 ppm |
| O2+Ar | ≤ 50 ppm | ≤ 10 ppm | ≤ 1 ppm |
| N2 | ≤ 250 ppm | ≤ 35 ppm | ≤ 4 ppm |
| CO2 | / | / | ≤ 0.5 ppm |
| C2H6 | ≤ 600 ppm | ≤ 25 ppm | ≤ 4 ppm |
| H2S | / | / | ≤ 0.1 ppm |
| H2O | ≤ 50 ppm | ≤ 15 ppm | ≤ 3 ppm |
Packaging Specifications：
| Cylinder Specifications | Content | Pressure | ||
| Cylinder Capacity | valve | volume | Bar | PSIG |
| 40L | CGA350 | 5 m3 | 150 | 2175 |
| 47L | CGA350 | 7 m3 | 150 | 2175 |
| 50L | CGA350 | 10 m3 | 200 | 2900 |
Why choose YIGAS?
Team
- Global leadership: The core management team has backgrounds in multinational companies and listed companies, and has been deeply involved in the industrial gas field for decades.
Full industry chain capabilities: Covering the entire process of gas industry production, operation, R&D, commercialization and quality control. - Technology leadership: Proficient in gas/chemical synthesis, purification and process optimization, and providing customized application technology support.
R&D
- Innovation-driven: Focus on cutting-edge research and development to provide safer, sustainable and cost-effective gas solutions.
- Closed-loop development system: From conceptual design to large-scale production, ensure seamless connection between technology transformation and market implementation.
Service
- Customer-centric: Provide flexible, professional and all-weather responsive customized services.
- Core value guarantee: Supply chain stability, safety compliance (in compliance with ISO/OSHA standards) and optimal overall cost.
Quality
- Strict standards: Both self-owned products and outsourced products implement a three-level quality inspection process and pass third-party authoritative certification.
- Lean operation: Good at lean production management, analytical quality control and continuous process optimization.
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