Zibo Dijia Special Gas Co., Ltd. is one of the most reliable manufacturers and suppliers of high purity methane gas in China. If you're going to buy bulk high purity methane gas made in China, welcome to get quotation from our factory. All customized products are with high quality and competitive price.
High Purity Methane Gas
High Purity Methane Gas (CH₄) is a colorless, odorless, and highly flammable hydrocarbon. As the simplest alkane, methane serves as both a fuel and a chemical feedstock, while high-purity grades are selected for processes requiring controlled gas composition and reduced contamination.
In semiconductor manufacturing, methane may be used in selected plasma-based processes and specialized materials applications. It is also used to prepare calibration gas mixtures for analytical instruments and to support laboratory research. The required grade depends on the application, process sensitivity, and acceptable levels of moisture and other trace impurities.
When sourcing high-purity methane, buyers should evaluate the guaranteed purity, individual impurity limits, cylinder configuration, valve compatibility, quality documentation, and delivery requirements. A current technical data sheet and Certificate of Analysis (CoA) help verify that the product meets the intended application specifications.
Product Specifications
|
Parameter |
Details |
|---|---|
|
Product Name |
High Purity Methane Gas |
|
Chemical Formula |
CH₄ |
|
CAS Number |
74-82-8 |
|
Molecular Weight |
16.04 g/mol |
|
Appearance |
Colorless gas |
Actual purity, impurity limits, cylinder capacity, filling pressure, and valve connections should be confirmed against the current product specification before ordering. High-purity grades may have different impurity profiles depending on their intended use.
99.9% CH4, Industrial Grade
| Specification | 99.9% |
| Hydrogen | ≤ 50 ppm |
| Oxygen + Argon | ≤ 50 ppm |
| Nitrogen | ≤ 250 ppm |
| Ethane | ≤ 600 ppm |
| Moisture | ≤ 50 ppm |
99.99% CH4, Industrial Grade
| Specification | 99.99% |
| Hydrogen | ≤ 10 ppm |
| Oxygen + Argon | ≤ 10 ppm |
| Nitrogen | ≤ 35 ppm |
| Ethane | ≤ 25 ppm |
| Moisture | ≤ 15 ppm |
*Other Grades and Purity Available on Asking
Package Information
| Cylinder Specifications | Contents | Pressure | ||
| Cylinder Capacity | Valve | Volume | bar | psig |
| 40L | CGA350 | 6 m3 | 150 | 2175 |
| 47L | CGA350 | 7 m3 | 150 | 2175 |
| 50L | CGA350 | 10 m3 | 200 | 2900 |
*Other Packages Available on Asking
Semiconductor and Materials Processing
Methane is used in selected plasma processes and materials research involving carbon-containing films or surface treatment. Gas purity requirements depend on the process design and sensitivity to contaminants.
Calibration Gas Preparation
High-purity methane can serve as a component in certified or prepared gas mixtures used to calibrate gas detectors and analytical instruments. Accurate mixture preparation depends on the source-gas specification, blending process, and quality-control procedures.
Laboratory Research
Research laboratories use methane in controlled experiments involving hydrocarbon chemistry, combustion, and gas-phase reactions. The appropriate grade should be selected according to the experimental method and equipment requirements.
Industrial Chemical Processes
Methane is an important feedstock in industrial chemistry and can be used in selected processes for producing hydrogen and other chemical intermediates. Required purity depends on the process configuration and catalyst sensitivity.
Typical Applications
CTA
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FAQ
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