Solstice® HFO Blends

Solstice® N40 - (R-448A)

Solstice® N40 (R-448A) is a nonflammable, reduced-GWP HFO blend for new supermarkets or R-404A retrofits, especially low- and medium-temp refrigeration. It has a GWP of 1273 and provides 68% GWP reduction compared to R404A.

Overview
Solstice® N40 is a non-flammable, reduced GWP HFO refrigerant for new supermarkets or R-404A retrofits, especially low- and medium-temp refrigeration. It has a GWP of 1273 and provides 68% GWP reduction and around 15% lower energy consumption compared to R404A. It is listed under the U.S. EPA's SNAP program to replace ozone-depleting substances.Search SDS Number in SDS Finder - 17419
Specifications

General Information

  • Application
    • Food Retail - Condensing Unit
    • Food Retail - High Side of Cascade
    • Food Retail - Stand-Alone Refrigerator
    • Food Retail - Supermarket System
  • ASHRAE Number
    • R-448A
  • Brand
    • Solstice®
  • Contains
    • R-32 / R-125 / R134a / R-1234ze / R-1234yf
  • Formula
    • R-32 / R-125 / R-134a / R-1234ze(E) / R-1234yf, (26% / 26% / 21% / 7% / 20%)
  • Glide
    • 7.0 °F
  • Refrigerant Class
    • HFO Blend
  • Refrigerant Type
    • Zeotropic blend
  • Replaces
    • R-22
    • R-402A
    • R-404A
    • R-408A
    • R-502
    • R-507
  • Substitutes
    • R-404A, R22, R-408A, R402-A
  • Typical Lubricant
    • POE (polyol ester) Oil

Physical Properties

  • Appearance
    • Colorless
  • Critical Density
    • 29.80 lbm/ft³
  • Critical Pressure
    • 666.4 psia
  • Critical Volume
    • 0.03356 ft³/lbm
  • Heat of Vaporization
    • 103.9 Btu/lbm
  • Liquid Density
    • 68.50 lbm/ft³ at 77°F
    • 74.77 lbm/ft³ at 32ºF
  • Liquid Heat Capacity
    • 0.3717 Btu/lbm at 77 °F
  • Liquid Thermal Conductivity
    • 0.0469 Btu/h ft at 77 °F
  • Liquid Viscosity
    • 9.34 x 10-5 lbm/ft s at 77°F
  • Lower Flammable Limit
    • Nonflammable
  • Molecular Weight
    • 86.3 lbm/lbmol
  • Vapor Density
    • 0.2937 lbm/ft3
    • 3.053 lbm/ft3
  • Vapor Heat Capacity
    • 0.2767 Btu/lbm at 77 °F
  • Vapor Pressure
    • 162.1 psia at 77 °F hectopascal
  • Vapor Thermal Conductivity
    • 0.0084 Btu/h ft at 77 °F
  • Vapor Viscosity
    • 8.41 x 10-6 lbm/ft s

Temperature

  • Boiling Point/Range
    • -51.0 °F at 1 Atm
  • Critical Temperature
    • 180.8 °F

Safety & Environment

  • Global Warming Potential
    • 1386
  • Ozone Depletion Potential
    • 0

Standards & Approvals

  • ASHRAE Safety Classification
    • A1 (Nonflammable)
  • REACH Product Stewardship
    • Registered

General Information

  • Application
    • Food Retail - Condensing Unit
    • Food Retail - High Side of Cascade
    • Food Retail - Stand-Alone Refrigerator
    • Food Retail - Supermarket System
  • ASHRAE Number
    • R-448A
  • Brand
    • Solstice®
  • Contains
    • R-32 / R-125 / R134a / R-1234ze / R-1234yf
  • Formula
    • R-32 / R-125 / R-134a / R-1234ze(E) / R-1234yf, (26% / 26% / 21% / 7% / 20%)
  • Glide
    • 7.0 °F
  • Refrigerant Class
    • HFO Blend
  • Refrigerant Type
    • Zeotropic blend
  • Replaces
    • R-22
    • R-402A
    • R-404A
    • R-408A
    • R-502
    • R-507
  • Substitutes
    • R-404A, R22, R-408A, R402-A
  • Typical Lubricant
    • POE (polyol ester) Oil

Physical Properties

  • Appearance
    • Colorless
  • Critical Density
    • 29.80 lbm/ft³
  • Critical Pressure
    • 666.4 psia
  • Critical Volume
    • 0.03356 ft³/lbm
  • Heat of Vaporization
    • 103.9 Btu/lbm
  • Liquid Density
    • 68.50 lbm/ft³ at 77°F
    • 74.77 lbm/ft³ at 32ºF
  • Liquid Heat Capacity
    • 0.3717 Btu/lbm at 77 °F
  • Liquid Thermal Conductivity
    • 0.0469 Btu/h ft at 77 °F
  • Liquid Viscosity
    • 9.34 x 10-5 lbm/ft s at 77°F
  • Lower Flammable Limit
    • Nonflammable
  • Molecular Weight
    • 86.3 lbm/lbmol
  • Vapor Density
    • 0.2937 lbm/ft3
    • 3.053 lbm/ft3
  • Vapor Heat Capacity
    • 0.2767 Btu/lbm at 77 °F
  • Vapor Pressure
    • 162.1 psia at 77 °F hectopascal
  • Vapor Thermal Conductivity
    • 0.0084 Btu/h ft at 77 °F
  • Vapor Viscosity
    • 8.41 x 10-6 lbm/ft s

Temperature

  • Boiling Point/Range
    • -51.0 °F at 1 Atm
  • Critical Temperature
    • 180.8 °F

Safety & Environment

  • Global Warming Potential
    • 1386
  • Ozone Depletion Potential
    • 0

Standards & Approvals

  • ASHRAE Safety Classification
    • A1 (Nonflammable)
  • REACH Product Stewardship
    • Registered
  • ASHRAE Number : R-448A
  • Typical Lubricant : POE (polyol ester) Oil
  • Substitutes : R-404A, R22, R-408A, R402-A
  • Replaces : R-22|R-402A|R-404A|R-408A|R-502|R-507
  • Refrigerant Type : Zeotropic blend
  • Refrigerant Class : HFO Blend
  • Glide : 7.0 °F
  • Formula : R-32 / R-125 / R-134a / R-1234ze(E) / R-1234yf, (26% / 26% / 21% / 7% / 20%)
  • Contains : R-32 / R-125 / R134a / R-1234ze / R-1234yf
  • Brand : Solstice®
  • Application : Food Retail - Condensing Unit|Food Retail - High Side of Cascade|Food Retail - Stand-Alone Refrigerator|Food Retail - Supermarket System
  • Vapor Viscosity : 8.41 x 10-6 lbm/ft s
  • Vapor Thermal Conductivity : 0.0084 Btu/h ft at 77 °F
  • Vapor Pressure : 162.1 psia at 77 °F hectopascal
  • Vapor Heat Capacity : 0.2767 Btu/lbm at 77 °F
  • Vapor Density : 0.2937 lbm/ft3|3.053 lbm/ft3
  • Molecular Weight : 86.3 lbm/lbmol
  • Lower Flammable Limit : Nonflammable
  • Liquid Viscosity : 9.34 x 10-5 lbm/ft s at 77°F
  • Liquid Thermal Conductivity : 0.0469 Btu/h ft at 77 °F
  • Liquid Heat Capacity : 0.3717 Btu/lbm at 77 °F
  • Liquid Density : 68.50 lbm/ft³ at 77°F|74.77 lbm/ft³ at 32ºF
  • Heat of Vaporization : 103.9 Btu/lbm
  • Critical Volume : 0.03356 ft³/lbm
  • Critical Pressure : 666.4 psia
  • Critical Density : 29.80 lbm/ft³
  • Appearance : Colorless
  • Critical Temperature : 180.8 °F
  • Boiling Point/Range : -51.0 °F at 1 Atm
  • Ozone Depletion Potential : 0
  • Global Warming Potential : 1386
  • REACH Product Stewardship : Registered
  • ASHRAE Safety Classification : A1 (Nonflammable)
Others
Name
Description
File Size
Date
Size
Solstice® N40, Genetron Performax® LT, Solstice 513A, Solstice N13 for new supermarkets, retrofits, and equipment
application/pdf 134.92 KB
5/29/2025
134.92 KB
Products: Genetron Performax® LT, Solstice® N40 Bulletin#: 05 rev 0.0
application/pdf 320.3 KB
5/29/2025
320.3 KB
Most energy-efficient, reduced GWP alternative to R404A available
application/pdf 229.41 KB
5/29/2025
229.41 KB
Products: Genetron Performax® LT (R-407F), Solstice® N40 (R-448A). Bulletin#: 06 rev 0.0
application/pdf 296.43 KB
5/29/2025
296.43 KB
Technical Note
Name
Description
File Size
Date
Size
Products: Solstice® N40 , Solstice N13, Genetron Performax® LT. Bulletin#: 09 rev 0.0
application/pdf 121.01 KB
5/29/2025
121.01 KB
Retrofit guidelines for R-404A/R-507A to Solstice® N40
application/pdf 185.32 KB
5/29/2025
185.32 KB
Solstice® N40 Pressure-Temp Chart
application/pdf 379.46 KB
5/29/2025
379.46 KB
Retrofit guideline: Solstice® N40 or Genetron Performax® LT replacing HCFC-22 (R-22)
application/pdf 1.08 MB
5/29/2025
1.08 MB
Sales Sheet
Name
Description
File Size
Date
Size
Alternativa de GWP mais eficiente em termos de energia e reduzida ao R404A disponível
application/pdf 175.48 KB
5/29/2025
175.48 KB
Brochure
Name
Description
File Size
Date
Size
Understanding glide is the key to maintaining the desired temperature and protecting the compressor
application/pdf 2.53 MB
5/29/2025
2.53 MB
See how Genetron Performax® LT and Solstice® N40 produce high quality ice, reduce energy consumption with lower GWP than R-22 in ice arena applications
application/pdf 690.27 KB
5/29/2025
690.27 KB
Most energy-efficient, reduced GWP alternative to R404A available
application/pdf 228.14 KB
3/12/2024
228.14 KB
Manuals and Guides
Name
Description
File Size
Date
Size
R-22, R-402A, R-408A, R-507A & R404A to Solstice® N40 (R-448A)
application/pdf 700.79 KB
3/12/2024
700.79 KB
Data Sheet
Name
Description
File Size
Date
Size
Solstice® N40, Solstice N13 pressure-temperature charts
application/pdf 405.88 KB
5/29/2025
405.88 KB
Solstice® N40 zeotropic blend replacement for R-404A/R-507, R-22, R-407 series
application/pdf 1.11 MB
5/29/2025
1.11 MB
(R-448A)
application/pdf 936.77 KB
5/13/2024
936.77 KB
Applications Chart
application/pdf 5.46 MB
7/30/2024
5.46 MB
Infographic
Name
Description
File Size
Date
Size
Infographic
application/pdf 1.15 MB
7/30/2024
1.15 MB
Case Study
Name
Description
File Size
Date
Size
Read how CGS found a better alternative for new cold storage with Genetron Performax® LT (R-407F)
application/pdf 411.79 KB
5/29/2025
411.79 KB
Read how RRRink improved system performance while reducing its environmental impact by switching to Solstice® N40
application/pdf 390.95 KB
5/29/2025
390.95 KB
Read how Ray’s Apple Market switched to Solstice® N40, improved system performance and reduced environmental impact
application/pdf 159.91 KB
5/29/2025
159.91 KB
Read why Festival Foods chose Solstice® N40 for performance, regulatory longevity, system affordability and energy savings
application/pdf 192.21 KB
5/29/2025
192.21 KB
Learn how Solstice® N40 (R448A) refrigerant offers lasting, cost-effective solutions for grocery chains seeking viable, lower-GWP alternatives
application/pdf 883.55 KB
5/29/2025
883.55 KB
Read how Solstice N40 retrofit led to increased energy savings for Braido Foods Grocery Store
application/pdf 238.43 KB
5/29/2025
238.43 KB
Read how Solstice® N40 provides performance improvement while reducing environmental impact
application/pdf 1.82 MB
3/12/2024
1.82 MB
Read how RRRink improved system performance while reducing its environmental impact by switching to Solstice® N40
application/pdf 389.62 KB
3/12/2024
389.62 KB
Name
Description
File Size
Date
Size
Solstice® N40, Solstice N13 pressure-temperature charts
application/pdf 405.88 KB
5/29/2025
405.88 KB
Read how CGS found a better alternative for new cold storage with Genetron Performax® LT (R-407F)
application/pdf 411.79 KB
5/29/2025
411.79 KB
Products: Solstice® N40 , Solstice N13, Genetron Performax® LT. Bulletin#: 09 rev 0.0
application/pdf 121.01 KB
5/29/2025
121.01 KB
Retrofit guidelines for R-404A/R-507A to Solstice® N40
application/pdf 185.32 KB
5/29/2025
185.32 KB
Read how RRRink improved system performance while reducing its environmental impact by switching to Solstice® N40
application/pdf 390.95 KB
5/29/2025
390.95 KB
Alternativa de GWP mais eficiente em termos de energia e reduzida ao R404A disponível
application/pdf 175.48 KB
5/29/2025
175.48 KB
Read how Ray’s Apple Market switched to Solstice® N40, improved system performance and reduced environmental impact
application/pdf 159.91 KB
5/29/2025
159.91 KB
Solstice® N40, Genetron Performax® LT, Solstice 513A, Solstice N13 for new supermarkets, retrofits, and equipment
application/pdf 134.92 KB
5/29/2025
134.92 KB
Products: Genetron Performax® LT, Solstice® N40 Bulletin#: 05 rev 0.0
application/pdf 320.3 KB
5/29/2025
320.3 KB
Read why Festival Foods chose Solstice® N40 for performance, regulatory longevity, system affordability and energy savings
application/pdf 192.21 KB
5/29/2025
192.21 KB
Solstice® N40 zeotropic blend replacement for R-404A/R-507, R-22, R-407 series
application/pdf 1.11 MB
5/29/2025
1.11 MB
Understanding glide is the key to maintaining the desired temperature and protecting the compressor
application/pdf 2.53 MB
5/29/2025
2.53 MB
See how Genetron Performax® LT and Solstice® N40 produce high quality ice, reduce energy consumption with lower GWP than R-22 in ice arena applications
application/pdf 690.27 KB
5/29/2025
690.27 KB
Solstice® N40 Pressure-Temp Chart
application/pdf 379.46 KB
5/29/2025
379.46 KB
Learn how Solstice® N40 (R448A) refrigerant offers lasting, cost-effective solutions for grocery chains seeking viable, lower-GWP alternatives
application/pdf 883.55 KB
5/29/2025
883.55 KB
Retrofit guideline: Solstice® N40 or Genetron Performax® LT replacing HCFC-22 (R-22)
application/pdf 1.08 MB
5/29/2025
1.08 MB
Most energy-efficient, reduced GWP alternative to R404A available
application/pdf 229.41 KB
5/29/2025
229.41 KB
Read how Solstice N40 retrofit led to increased energy savings for Braido Foods Grocery Store
application/pdf 238.43 KB
5/29/2025
238.43 KB
Products: Genetron Performax® LT (R-407F), Solstice® N40 (R-448A). Bulletin#: 06 rev 0.0
application/pdf 296.43 KB
5/29/2025
296.43 KB
(R-448A)
application/pdf 936.77 KB
5/13/2024
936.77 KB
Applications Chart
application/pdf 5.46 MB
7/30/2024
5.46 MB
Infographic
application/pdf 1.15 MB
7/30/2024
1.15 MB
R-22, R-402A, R-408A, R-507A & R404A to Solstice® N40 (R-448A)
application/pdf 700.79 KB
3/12/2024
700.79 KB
Most energy-efficient, reduced GWP alternative to R404A available
application/pdf 228.14 KB
3/12/2024
228.14 KB
Read how Solstice® N40 provides performance improvement while reducing environmental impact
application/pdf 1.82 MB
3/12/2024
1.82 MB
Read how RRRink improved system performance while reducing its environmental impact by switching to Solstice® N40
application/pdf 389.62 KB
3/12/2024
389.62 KB
Name
Description
File Size
Date
Size
Solstice® N40, Genetron Performax® LT, Solstice 513A, Solstice N13 for new supermarkets, retrofits, and equipment
134.92 KB
5/29/2025
Products: Genetron Performax® LT, Solstice® N40 Bulletin#: 05 rev 0.0
320.3 KB
5/29/2025
Most energy-efficient, reduced GWP alternative to R404A available
229.41 KB
5/29/2025
Products: Genetron Performax® LT (R-407F), Solstice® N40 (R-448A). Bulletin#: 06 rev 0.0
296.43 KB
5/29/2025
Products: Solstice® N40 , Solstice N13, Genetron Performax® LT. Bulletin#: 09 rev 0.0
121.01 KB
5/29/2025
Retrofit guidelines for R-404A/R-507A to Solstice® N40
185.32 KB
5/29/2025
Solstice® N40 Pressure-Temp Chart
379.46 KB
5/29/2025
Retrofit guideline: Solstice® N40 or Genetron Performax® LT replacing HCFC-22 (R-22)
1.08 MB
5/29/2025
Alternativa de GWP mais eficiente em termos de energia e reduzida ao R404A disponível
175.48 KB
5/29/2025
Understanding glide is the key to maintaining the desired temperature and protecting the compressor
2.53 MB
5/29/2025
See how Genetron Performax® LT and Solstice® N40 produce high quality ice, reduce energy consumption with lower GWP than R-22 in ice arena applications
690.27 KB
5/29/2025
Most energy-efficient, reduced GWP alternative to R404A available
228.14 KB
3/12/2024
R-22, R-402A, R-408A, R-507A & R404A to Solstice® N40 (R-448A)
700.79 KB
3/12/2024
Solstice® N40, Solstice N13 pressure-temperature charts
405.88 KB
5/29/2025
Solstice® N40 zeotropic blend replacement for R-404A/R-507, R-22, R-407 series
1.11 MB
5/29/2025
(R-448A)
936.77 KB
5/13/2024
Applications Chart
5.46 MB
7/30/2024
Read how CGS found a better alternative for new cold storage with Genetron Performax® LT (R-407F)
411.79 KB
5/29/2025
Read how RRRink improved system performance while reducing its environmental impact by switching to Solstice® N40
390.95 KB
5/29/2025
Read how Ray’s Apple Market switched to Solstice® N40, improved system performance and reduced environmental impact
159.91 KB
5/29/2025
Read why Festival Foods chose Solstice® N40 for performance, regulatory longevity, system affordability and energy savings
192.21 KB
5/29/2025
Learn how Solstice® N40 (R448A) refrigerant offers lasting, cost-effective solutions for grocery chains seeking viable, lower-GWP alternatives
883.55 KB
5/29/2025
Read how Solstice N40 retrofit led to increased energy savings for Braido Foods Grocery Store
238.43 KB
5/29/2025
Read how Solstice® N40 provides performance improvement while reducing environmental impact
1.82 MB
3/12/2024
Read how RRRink improved system performance while reducing its environmental impact by switching to Solstice® N40
389.62 KB
3/12/2024