R142b (1-chloro-1,1-difluoroethane) is an HCFC controlled substance once used in blends and foam blowing. It now mainly serves existing equipment and specific transitional formulations.
| Chemical Name | 1-氯-1,1-二氟乙烷 |
|---|---|
| Molecular Formula | CH₃CClF₂ |
| Molecular Weight | 100.50 |
| Boiling Point (101.3 kPa) | -9.2 ℃ |
| Critical Temperature | 137.1 ℃ |
| Critical Pressure | 4.06 MPa |
| ODP (Ozone Depletion Potential) | 0.065 |
| GWP (Global Warming Potential) | 2310 |
| ASHRAE Safety Class | A2（低毒、可燃） |
| Appearance | 无色透明、无浑浊 |
|---|---|
| Purity | ≥ 99.9 % |
| Moisture | ≤ 10 ppm |
| Acidity (as HCl) | ≤ 1 ppm |
| Evaporation Residue | ≤ 0.01 % |
| Executing Standard | 符合国家标准及行业标准 |
※ Packaging specs and labels can be customized; bulk orders can be delivered by tank truck.
R142b is an HCFC controlled and flammable substance. Use and recovery must follow Montreal Protocol quota management; new systems should choose low-GWP alternatives.
| Storage & Transport | Store in a cool, ventilated, explosion-proof warehouse away from fire and heat; temperature not above 52℃. Keep separated from oxidizers and acids. Inspect cylinders periodically and handle gently. |
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