Mole percentage: R22 accounts for 63.079%, R218 accounts for 36.921%
Mass percentage:R22accounting for 44%,R21856%
R509A refrigerant parameters
| Name: R509A, HCFC/FC-509A | Classification: Mixed refrigerants |
| Molecular weight: 124 | Molar mass: 124g/mol |
| CAS Number: 76-19-7/75-45-6 | Critical temperature: 68.4℃ |
| Critical pressure: 3.6MPa | Critical density: 0.596g/cm3 |
Product identity
- Safety class
- A1
- Type
- HCFC azeotrope
- GWP
- 5600 (IPCC AR4)
- ODP
- 0.024 (ozone-depleting substance, controlled under the Montreal Protocol)
Application areas
Grouped by equipment type, for selection reference only; the equipment manufacturer's requirements and local regulations prevail.
Regulatory and compliance status (R509A / R509A (R22/R218 azeotrope)) — phase-out in progress
R509A (R509A (R22/R218 azeotrope)) belongs to the hydrochlorofluorocarbons (HCFC), with an ODP of 0.024, 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.
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 R509ANo 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 R509AOnly 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 R509ASupplied 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 R509ANo 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 R509A: 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).
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.
About WULA
WULA was founded in 2013. We are a refrigerant supply organizer, focused on moving goods from the production line to the customer's own line and site.
- Compliance paperwork
- We help customers meet compliance requirements: sales filing, per-transaction verification, quarterly reporting and three-year retention of documents.
- Order handling
- Scattered orders are managed through consolidated, data-driven administration to keep procurement efficient.
- Supply allocation
- Forecasting and coordinated allocation across multiple warehouses, to keep supply stable.
Need a quote or technical documents for R509A?
Get current pricing, packaging options, MSDS and compliance files. Send us your requirement and our sales and technical team will get back to you shortly.
Bulk orders, custom packaging and other technical questions are all welcome.
Regulatory data updated: 2026-09-18 · v2026.09.12
