R124 Refrigerant Parameters
| Name: R124, HCFC-124 | Chinese name: monochlorotetrafluoroethane |
| English full name: chlorotetrafluoroethane | Chemical formula: C2HClF4 |
| Molecular weight:137 | Standard boiling point: -12℃ |
| Critical temperature:122℃ | Critical pressure: 3.6MPa (absolute pressure) |
| Critical density: 0.565g/cm3 | CAS Number: 63938-10-3 |
| Ozone Destruction Potential (ODP):0.02 | Global Warming Coefficient (GWP):609 |
Regulatory and compliance status (R124 / Chlorotetrafluoroethane (HCFC-124)) — phase-out in progress
R124 (Chlorotetrafluoroethane (HCFC-124)) belongs to the hydrochlorofluorocarbons (HCFC), with an ODP of 0.022, and is a Class II controlled substance under the Montreal Protocol, currently subject to the global phase-out schedule. Developed countries halted production and import in 2020; developing countries (including China) are advancing according to the schedule, with servicing stock tightening year by year. The following are the regional status as of 2026.
Product identity
- Safety class
- A1
- Type
- HCFC
EU
- RegulationOzone-Depleting Substances Regulation (EC) 1005/2009
- StatusVirgin HCFC no longer placed on the market
- ServicingUse of reclaimed product permitted until 2030 (for some equipment types)
- For R124No supply of virgin product; servicing must use reclaimed product and must be performed by certified personnel
US
- RegulationClean Air Act Title VI + SNAP program
- StatusProduction and import of virgin HCFC halted from 2020-01-01
- Existing stockReclaimed product can be used for the maintenance of existing equipment
- For R124Only reclaimed product available; supply and prices continue to tighten
China
- RegulationRegulations on the Administration of Ozone-Depleting Substances (2024 revision) + National Phase-out Plan
- Schedule67.5% baseline reduction by 2025, 97.5% by 2030, with only a minimal amount retained for servicing use after 2040
- QuotaAnnual quota licensing for production and use, decreasing year by year
- For R124Supplied within quota; procurement must be filed; servicing use given priority
- Domestic procurement qualificationMust be filed in the “Ozone-Depleting Substances Information Management System”; suppliers must verify the filing
Japan
- RegulationOzone Layer Protection Act + Act on Rational Use and Proper Management of Fluorocarbons
- StatusHCFC is essentially abolished, with only reclaimed product in circulation
- For R124No supply of virgin product; must be retrofitted or replaced
Other countries and regions (grouped by the Kigali Amendment)
Apart from the four columns of EU / US / China / Japan, the global 170+ Kigali parties all comply under the A5 (developing countries) / non-A5 (developed countries) groupings of the Montreal Protocol, and none impose equipment-level bans. The grouping determines the HFC reduction pace and is unrelated to geography — for example, the Middle East Gulf and India belong to A5 Group 2, while Brazil, Mexico and Chile belong to A5 Group 1 (same group as China). The table below is a quick reference for the groupings of major markets:
| Grouping | HFC reduction pace | Major countries / regions (representative) |
|---|---|---|
| A5 Group 1 (developing countries, including China) | 2024 freeze → 10% reduction by 2029 → 30% by 2035 → 50% by 2040 → 80% by 2045 | Brazil, Argentina, Chile, Colombia, Peru, Mexico, South Africa, South Korea, Thailand, Indonesia, Malaysia, Vietnam, Egypt, Nigeria, etc. (about 140 countries in total) |
| A5 Group 2 (high-ambient-temperature group, HAT) | 2028 freeze → 10% reduction by 2032 → 20% by 2037 → 30% by 2042 → 85% by 2047 | India, Bahrain, Iran, Iraq, Kuwait, Oman, Pakistan, Qatar, Saudi Arabia, United Arab Emirates |
| Other non-A5 (developed countries, except EU/US/Japan) | 85% reduction by 2036 / reduced to 15% by 2050 | Canada, Australia, New Zealand, Switzerland, Norway, United Kingdom, Russia* (first two steps delayed: 5% by 2020, 35% by 2025), etc. |
For R124: a controlled substance in the phase-out process, with supply tightening year by year and prices rising. For the complete list of Parties and groupings, refer to the UNEP Ozone Secretariat (data version 2026.09).
- GWP (100-year, on-site property basis)
- 609 (IPCC AR4)
- ODP
- 0.022 (ozone-depleting substance, controlled under the Montreal Protocol)
- Safety group (ASHRAE)
- A1
- Chemical family
- HCFC
Thermophysical properties
- Normal boiling point (1 atm)
- -12 °C
| Saturation temp. (°C) | -52 | -42 | -32 | -22 | -12 | 8 | 18 | 28 | 38 | 48 | 58 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Saturation pressure (bar abs) | 0.1314 | 0.237 | 0.4035 | 0.6534 | 1.0132 | 2.1859 | 3.0681 | 4.1985 | 5.6181 | 7.3707 | 9.5023 |
Data taken from published pressure–temperature tables and interpolated; for selection reference only — do not use for safety-critical design, commissioning or charging calculations. The equipment manufacturer's requirements and primary references prevail. Refrigerant pressure–temperature tool
Regulatory data updated: 2026-09-17 · v2026.09.10
Supply & Ordering
- Packaging
- cylinders / ton drums / ISO tanks / tankers (by grade and order size)
- Minimum order
- confirmed on enquiry; negotiable for bulk purchases
- Terms & lead time
- FOB / CIF / EXW and others confirmed on request
Please confirm the exact packaging, minimum order and lead time via the enquiry form below.
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