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- Refrigerants
- Second-generation
- Third-generation
- Blended refrigerant
- Fourth-generation
- UV Series
- UV absorber
- Light stabilizers
- Melanin



Shandong Do Sender Chemicals Co.,Ltd.
- Refrigerants
- Second-generation
- Third-generation
- Blended refrigerant
- Fourth-generation
- UV Series
- UV absorber
- Light stabilizers
- Melanin
- …
- Refrigerants
- Second-generation
- Third-generation
- Blended refrigerant
- Fourth-generation
- UV Series
- UV absorber
- Light stabilizers
- Melanin

R507A
Pentafluoroethane/Trifluoroethane (R507A)
CAS No.:354-33-6/420-46-2 UN No.: 3163 CLASS No.: 2.2 Molecular formula: CHF2CF3/CH3CF3
R507A is blended by R143a and R125, which can be used to replace R502 and is suitable for large commercial air conditioners, refrigerated trucks, etc.

R507A
R507 is an azeotropic refrigerant blend consisting of 50% R125 (CAS 354-33-6) and 50% R143a (CAS 420-46-2). It was developed as a replacement for R502 and R22 in commercial refrigeration applications. R507 has zero ozone depletion potential (ODP) and is classified as an A1 refrigerant (lower toxicity, no flame propagation).
Applications
Supermarket Refrigeration
Display cases, walk-in coolers, and freezer applications
Industrial Refrigeration
Food processing, cold storage warehouses, and distribution centers
Transport Refrigeration
Reefer trucks, shipping containers, and refrigerated transpor
Ice Machines
Reefer trucks, shipping containers, and refrigerated transpor
Chillers
Low-temperature industrial process chillers
Retrofit Applications
Industrial and commercial dehumidifiers
Physical & Chemical Properties
Physical Properties
Boiling Point (1 atm): -46.7°C (-52.1°F)
Critical Temperature: 70.9°C (159.6°F)
Critical Pressure: 3.79 MPa (550 psia)
Liquid Density (25°C): ~1,040 kg/m³
Vapor Density (air=1): ~3.5
ODP (Ozone Depletion): 0
GWP (Global Warming): 3,985 (IPCC AR5)
Flammability: A1 - Non-flammable (R125 fully suppresses R143a's flammability)
Thermodynamic & Performance Characteristics
Glide: 0°C (Azeotropic) - Behaves identically to a single-component refrigerant. No composition shift during phase change.
Capacity: High volumetric cooling capacity, suitable for low-temperature applications.
Efficiency: Similar or slightly better than R502/R404A.
Operating Pressure: Similar to R502/R404A.
Discharge Temperature: Lower than R502, beneficial for compressor life.
Temperature Range: Optimized for low and medium-temperature commercial refrigeration.
Material Compatibility & Handling
Lubricant: Polyol Ester (POE) Oil exclusively.
Seal Materials: Compatible with HNBR, EPDM, Neoprene.
Metals: Compatible with standard metals.
Charging Method: Can be charged as liquid or vapor with no composition shift.
Leak Detection: Requires electronic leak detectors.
Packaging, Storage & Transportation
Packaging
Disposable Cylinders: 10kg, 25kg, and 50kg sizes with color-coded labels (typically light blue for R507)
Returnable Cylinders: 100kg, 500kg, and 1000kg sizes for commercial users
ISO Containers: Bulk shipments for large industrial customers
Storage
Store in a cool, dry, well-ventilated area away from direct sunlight
Keep away from heat sources, open flames, and ignition sources
Storage temperature should not exceed 52°C (125°F)
Cylinders should be stored upright and secured to prevent tipping
Keep valve protection caps in place when not in use
Store away from oxidizing materials and corrosive environments
Transportation
Classified as UN1078, Fluorinated hydrocarbons, n.o.s. (R125 + R143a)
Proper shipping name: "Refrigerant gas R507"
Hazard class: 2.2 (Non-flammable, non-toxic gas)
Transport in upright position with valves protected
Comply with local and international regulations (DOT, ADR, IATA)
Ensure adequate ventilation during transportation
FAQ
What is R507 refrigerant?
What are the CAS numbers for R507 components?
Is R507 an azeotropic or zeotropic blend?
What is the boiling point of R507?
What is the Ozone Depletion Potential (ODP) of R507?
What is the Global Warming Potential (GWP) of R507?
Can R507 be used as a direct replacement for R502?
What lubricants are compatible with R507?
What is the ASHRAE safety classification for R507?
What are the main applications for R507 refrigerant?
How should R507 cylinders be stored?
What is the chemical formula for R125 (CAS 354-33-6)?
What is the chemical formula for R143a (CAS 420-46-2)?
Is R507 flammable?
What is the critical temperature of R507?
How does R507 compare to R404A?
What are the environmental regulations affecting R507?
Can R507 be recovered and recycled?
What personal protective equipment (PPE) is recommended when handling R507?
What is the vapor pressure of R507 at 25°C?
Are there low-GWP alternatives to R507?
What is the typical cylinder color for R507?
Is R507 compatible with copper in refrigeration systems?
Refrigerants
Second Refrigerant
R22
Third Generation
R32
R23
HFC-143A
R134A
HFC-125
R152A
Blended Refrigerant
R404A
R407C
R410A
R507A
Fourth Generation
R1234YF
UV Series
UV absorber
UV-1164
BP-2
UV-1
UV-123
UV-327
UV-P
UV-329
UV-1130
Light satabilizers
UV-292
UV-770
Melanin
2-Anilino-6-(dibutylamino)-3-me
Other chemicals
2-Hydroxy-2methylpropiophenone
1,3-benzothiazol-2-ylsulfanylme
4-Chloro-3,5-dimethylphenol (CA
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Sales Office Address:No. 66, Zhongrun Avenue, Zhangdian District, Zibo City, Shandong Province,China.
Manufacture Facility: Fine Chemical Industry Park, Zhangdian District, Zibo City, Shandong Province,China.
