| Chemical name | Difluoromethane (HFC-32) |
|---|---|
| Common designations | R32 |
| CAS No. | 75-10-5 |
| Formula | CH2F2 |
| UN No. | UN 3252 |
| GWP | 675 |
| ODP | 0 |
| Safety class | A2L |
| Family | HFC |
| Regulatory tier | F-gas (mid GWP) |
| Molecular weight (g/mol) | 52.024 |
|---|---|
| Triple point temp. (°C) | -136.810 |
| Critical temp. (°C) | 78.105 |
| Critical pressure (MPa, abs) | 5.7783 |
| Critical density (g/cm³) | 0.4240 |
| Acentric factor | 0.2769 |
| Liquid relative density (20/4°C) | 0.9814 |
| Vapor relative density (air=1) | 1.796 |
| Indicator | Premium grade | Qualified grade |
|---|---|---|
| Purity, %≥ | 99.8 | 99.5 |
| Water, %≤ | 0.001 | 0.001 |
| Impurity limit | Chloride (Cl⁻) test pass | |
| Acidity, %≤ | 0.0001 | 0.0001 |
| Non-volatile residue, %≤ | 0.005 | 0.01 |
| Non-condensable gas, %≤ | 1.5 | 1.5 |
| Halogenated unsaturated hydrocarbon, %≤ | — | — |
Mainly used as a refrigerant in room A/C, commercial refrigeration, cold-chain and heat-pump systems.
Mildly flammable. Store cool and ventilated, strictly away from sparks, open flame and heat; cylinders upright and secured; use explosion-proof electricals in the area.
requires POE oil
lower-GWP R454B, R452B (subject to equipment)
| Supplier | Wulachem |
|---|---|
| Contact | sales@wulachem.cn |