Methane
R50 (methane) is a deep-cryogenic natural refrigerant with a boiling point of -161.5℃. It is used in sub -160℃ cascade refrigeration, LNG liquefaction and natural-gas process cooling.
| Chemical Name | Methane |
|---|---|
| Molecular Formula | CH₄ |
| Molecular Weight | 16.04 |
| Boiling Point (101.3 kPa) | -161.5 ℃ |
| Critical Temperature | -82.6 ℃ |
| Critical Pressure | 4.60 MPa |
| ODP (Ozone Depletion Potential) | 0 |
| GWP (Global Warming Potential) | 25 |
| ASHRAE Safety Class | A3 (Flammable) |
| Vapor Density (air = 1) | 0.554 |
| Critical Density (g/cm³) | 0.1627 |
| Acentric Factor | 0.0114 |
| Triple Point Temperature (°C) | -182.456 |
| Appearance | Colorless, transparent, free of turbidity |
|---|---|
| Purity | ≥ 99.9 % |
| Moisture | ≤ 10 ppm |
| Acidity (as HCl) | ≤ 1 ppm |
| Evaporation Residue | ≤ 0.01 % |
| Executing Standard | Compliant with national and industry standards |
| 5 / 10 kg | Disposable steel cylinder |
|---|---|
| 40 kg | Refillable steel cylinder |
R50 is an A3 highly flammable fluid with a very low boiling point. Design per flammable cryogenic codes with explosion protection and ventilation, operated by professionals.
| Storage & Transportation | Store in a cool, ventilated, explosion-proof warehouse away from fire and heat; temperature not above 52℃. Strictly separate from oxidizers. Inspect cylinders periodically and handle gently. |
|---|
This Technical Data Sheet (TDS) is provided by Kelvins Data are based on current product standards and Wulachem’s finished-product technical references, for reference only; actual parameters are subject to the factory inspection report. For the official MSDS/SDS or batch inspection report, please contact us.
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