R508B is a near-azeotropic blend of R23 and R116 (46/54) with a boiling point around -106℃. Designed for ultra-low-temperature cascade systems below -80℃, it is an environmentally friendlier replacement for phased-out R13.
| Chemical Name | R508B 近共沸混合物（R23/R116 46/54） |
|---|---|
| Molecular Formula | R23 / R116 |
| Molecular Weight | about 95.4 |
| Boiling Point (101.3 kPa) | about -106.0 ℃ |
| Critical Temperature | about 24.0 ℃ |
| Critical Pressure | about 3.90 MPa |
| ODP (Ozone Depletion Potential) | 0 |
| GWP (Global Warming Potential) | about 13200 |
| ASHRAE Safety Class | A1（无毒、不可燃） |
| 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.
R508B is a blend and must be charged in liquid phase to keep composition accurate. It has a high GWP; recovery must comply with environmental regulations. Critical parameters are subject to the latest manufacturer data.
| Storage & Transport | Store in a cool, well-ventilated 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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