Solstice® HFO Blends
Solstice® 454B - (R-454B)
Solstice® 454B (R-454B) is a non-ozone-depleting, zeotropic blend designed as a low GWP alternative to R-410A in comfort air cooling and reversible heating applications.
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Overview
Solstice® 454B demonstrates improved efficiency and matching capacity to R-410A, with a GWP that’s 78% lower, minimizing redesign costs and capital expenditures. Solstice 454B (R-454B) is the most optimized R-410A replacement, providing easy conversion with minimal changes from a R-410A design.
Thanks to its high critical temperature and broader operating envelope in low evaporating temperatures, Solstice® 454B outperforms other refrigerant alternatives in normal and high ambient conditions in a variety of applications such as:
Thanks to its high critical temperature and broader operating envelope in low evaporating temperatures, Solstice® 454B outperforms other refrigerant alternatives in normal and high ambient conditions in a variety of applications such as:
- Direct expansion (DX) chillers
- Residential/light commercial air conditioning and heat pumps
- Commercial packaged systems
- Data center computer room air conditioning
Specifications
General Information
- Application
- Buildings - Chillers - Comfort Cooling and Heating
- Buildings - Residential/Light Commercial AC/Heat Pumps
- Buildings - Variable Refrigerant Flow (VRF) Systems
- Data Centers - Room and Precision Air Conditioning
- Industrial Process Refrigeration – Chillers: Low or Medium Temperature
- Disclaimer
- Although the information presented is believed to be accurate and reliable, user assumes all risks and liabilities related to the use of the products and/or information contained herein (including, but not limited to, risks relating to results, regulatory compliance and health, safety and environment). Information on potential applications for a product does not relieve the user from responsibility for ensuring that such use is approved in a particular country. Statements or suggestions concerning possible uses of a product are made without representation or warranty that any such use is free of patent infringement and are not recommendations to infringe any patent.
- ASHRAE Number
- R-454B
- Brand
- Solstice®
- Formula
- R-1234yf / R-32 (31.1% / 69.9%)
- Glide
- 1.5
- Refrigerant Class
- HFO Blend
- Refrigerant Type
- Zeotropic blend
- Replaces
- R-410A
- Substitutes
- R-410A
- Typical Lubricant
- POE
Physical Properties
- Appearance
- Colorless
- Composition
- R-32 / R-1234yf (68.9% / 31.1%)
- Critical Density
- 443.1 kg/m3
- Critical Pressure
- 52.7 bar
- Critical Volume
- 0.00226 m3/kg
- Liquid Density
- 996.5 kg/m3 at 25 °C
- Liquid Heat Capacity
- 1.80 kJ/kg·°K at 25 °C
- Liquid Thermal Conductivity
- 105.4 mW/m·°K at 25 °C
- Liquid Viscosity
- 114.8 µPa·sec at 25 °C
- Lower Flammable Limit
- 0.303 kg/m³
- Molecular Weight
- 62.6 kg/kmol
- Solubility in Water
- No data available
- Vapor Density
- 50.7 kg/m3 at 25 °C
- Vapor Heat Capacity
- 1.43 kJ/kg·°K at 25 °C
- Vapor Pressure
- 1515.9 kPa at 25 °C
- Vapor Thermal Conductivity
- 15.0 mW/m·°K at 25 °C
- Vapor Viscosity
- 12.8 µPa·sec at 25 °C
Temperature
- Boiling Point/Range
- -50.9 °C
- -59.62 °F
- Critical Temperature
- 170.6 °F / 77.0 °C
- Flashpoint
- Not applicable
Safety & Environment
- Flammable Range
- 11.25% (LFL), 22.00% (UFL)
- Global Warming Potential
- 467 rev /5TH IPCC
- Ozone Depletion Potential
- 0
Standards & Approvals
- ASHRAE Safety Classification
- A2L (Mildly flammable)
- REACH Product Stewardship
- Approved
General Information
- Application
- Buildings - Chillers - Comfort Cooling and Heating
- Buildings - Residential/Light Commercial AC/Heat Pumps
- Buildings - Variable Refrigerant Flow (VRF) Systems
- Data Centers - Room and Precision Air Conditioning
- Industrial Process Refrigeration – Chillers: Low or Medium Temperature
- Disclaimer
- Although the information presented is believed to be accurate and reliable, user assumes all risks and liabilities related to the use of the products and/or information contained herein (including, but not limited to, risks relating to results, regulatory compliance and health, safety and environment). Information on potential applications for a product does not relieve the user from responsibility for ensuring that such use is approved in a particular country. Statements or suggestions concerning possible uses of a product are made without representation or warranty that any such use is free of patent infringement and are not recommendations to infringe any patent.
- ASHRAE Number
- R-454B
- Brand
- Solstice®
- Formula
- R-1234yf / R-32 (31.1% / 69.9%)
- Glide
- 1.5
- Refrigerant Class
- HFO Blend
- Refrigerant Type
- Zeotropic blend
- Replaces
- R-410A
- Substitutes
- R-410A
- Typical Lubricant
- POE
Physical Properties
- Appearance
- Colorless
- Composition
- R-32 / R-1234yf (68.9% / 31.1%)
- Critical Density
- 443.1 kg/m3
- Critical Pressure
- 52.7 bar
- Critical Volume
- 0.00226 m3/kg
- Liquid Density
- 996.5 kg/m3 at 25 °C
- Liquid Heat Capacity
- 1.80 kJ/kg·°K at 25 °C
- Liquid Thermal Conductivity
- 105.4 mW/m·°K at 25 °C
- Liquid Viscosity
- 114.8 µPa·sec at 25 °C
- Lower Flammable Limit
- 0.303 kg/m³
- Molecular Weight
- 62.6 kg/kmol
- Solubility in Water
- No data available
- Vapor Density
- 50.7 kg/m3 at 25 °C
- Vapor Heat Capacity
- 1.43 kJ/kg·°K at 25 °C
- Vapor Pressure
- 1515.9 kPa at 25 °C
- Vapor Thermal Conductivity
- 15.0 mW/m·°K at 25 °C
- Vapor Viscosity
- 12.8 µPa·sec at 25 °C
Temperature
- Boiling Point/Range
- -50.9 °C
- -59.62 °F
- Critical Temperature
- 170.6 °F / 77.0 °C
- Flashpoint
- Not applicable
Safety & Environment
- Flammable Range
- 11.25% (LFL), 22.00% (UFL)
- Global Warming Potential
- 467 rev /5TH IPCC
- Ozone Depletion Potential
- 0
Standards & Approvals
- ASHRAE Safety Classification
- A2L (Mildly flammable)
- REACH Product Stewardship
- Approved
- Typical Lubricant : POE
- Refrigerant Class : HFO Blend
- Refrigerant Type : Zeotropic blend
- ASHRAE Number : R-454B
- Substitutes : R-410A
- Application : Buildings - Chillers - Comfort Cooling and Heating|Buildings - Residential/Light Commercial AC/Heat Pumps|Buildings - Variable Refrigerant Flow (VRF) Systems|Data Centers - Room and Precision Air Conditioning|Industrial Process Refrigeration – Chillers: Low or Medium Temperature
- Disclaimer : Although the information presented is believed to be accurate and reliable, user assumes all risks and liabilities related to the use of the products and/or information contained herein (including, but not limited to, risks relating to results, regulatory compliance and health, safety and environment). Information on potential applications for a product does not relieve the user from responsibility for ensuring that such use is approved in a particular country. Statements or suggestions concerning possible uses of a product are made without representation or warranty that any such use is free of patent infringement and are not recommendations to infringe any patent.
- Replaces : R-410A
- Formula : R-1234yf / R-32 (31.1% / 69.9%)
- Glide : 1.5
- Brand : Solstice®
- Liquid Thermal Conductivity : 105.4 mW/m·°K at 25 °C
- Vapor Thermal Conductivity : 15.0 mW/m·°K at 25 °C
- Lower Flammable Limit : 0.303 kg/m³
- Liquid Heat Capacity : 1.80 kJ/kg·°K at 25 °C
- Vapor Heat Capacity : 1.43 kJ/kg·°K at 25 °C
- Solubility in Water : No data available
- Critical Pressure : 52.7 bar
- Molecular Weight : 62.6 kg/kmol
- Liquid Viscosity : 114.8 µPa·sec at 25 °C
- Critical Density : 443.1 kg/m3
- Vapor Viscosity : 12.8 µPa·sec at 25 °C
- Critical Volume : 0.00226 m3/kg
- Vapor Pressure : 1515.9 kPa at 25 °C
- Liquid Density : 996.5 kg/m3 at 25 °C
- Vapor Density : 50.7 kg/m3 at 25 °C
- Composition : R-32 / R-1234yf (68.9% / 31.1%)
- Appearance : Colorless
- Critical Temperature : 170.6 °F / 77.0 °C
- Boiling Point/Range : -50.9 °C|-59.62 °F
- Flashpoint : Not applicable
- Ozone Depletion Potential : 0
- Global Warming Potential : 467 rev /5TH IPCC
- Flammable Range : 11.25% (LFL), 22.00% (UFL)
- ASHRAE Safety Classification : A2L (Mildly flammable)
- REACH Product Stewardship : Approved
Manuals and Guides
Name
Description
File Size
Date
Size
Applications Development Guide
application/pdf 518.22 KB
1/22/2024
518.22 KB
Data Sheet
Name
Description
File Size
Date
Size
Refrigerants Applications Chart
application/pdf 3.01 MB
5/2/2026
3.01 MB
Infographic
Name
Description
File Size
Date
Size
Infographic
application/pdf 1.15 MB
1/8/2026
1.15 MB
Name
Description
File Size
Date
Size
Infographic
application/pdf 1.15 MB
1/8/2026
1.15 MB
Refrigerants Applications Chart
application/pdf 3.01 MB
5/2/2026
3.01 MB
Applications Development Guide
application/pdf 518.22 KB
1/22/2024
518.22 KB
Name
Description
File Size
Date
Size
Applications Development Guide
518.22 KB
1/22/2024
