
Physical property
| molecular weight | 72.58 |
| boiling point, °C | -51.6 |
| critical temperature, °C | 72.5 |
| critical pressure, Mpa | 4.92 |
| liquid specific heat, 30°C, [KJ/(kg•°C)] | 1.78 |
| ODP | 0 |
| GWP | 1920 |
Quality index(HG/T 5162-2017)
| appearance | colorless and clear |
| odor | odorless |
| purity,%, | ≥99.5 |
| moisture,% | ≤0.001 |
| acidity,% | ≤0.0001 |
| evaporated residue,% | ≤0.01 |
| Chloride,% | Pass |
| Foul Gas in Air Phase,% | ≤1.5 |














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