Solstice® N13 (R-450A)

Zeotropic blend of R-134a and HFO-1234ze (Solstice® ze) designed to serve as a non flammable alternative to R-134a in medium temperature systems, offering similar performance and energy efficiency but with a global warming potential of only 547 (a reduction of almost 60% of GWP, according to IPCC 5th).

Use for heat pumps, air-cooled and water-cooled chillers, district heating and cooling, vending machines and beverage dispensers, high stage of CO2 cascade systems, high stage of cascade CO2 systems, DX medium temperature refrigeration etc.

Download for free our refrigerant system simulation tool which makes it easier than ever to select the right refrigerant.

Download TDS (2 MB) | Download MSDS

General Information

Item Specification
ASHRAE # R-450A
Class HFC / HFO
Refrigerant Type Blend
Typical Lubricant POE
Replaces R-134a

Physical Properties

Property Value
Chemical Notation (42% R-134a / 58% R-1234ze)
Critical Temperature (°C) 104.4
Critical Pressure (bar) 38.2
Liquid Density (kg/m³) 0°C 1257.7
ANSIASHRAE Standard 36-1992 Safety Group Classification A1
Relative Molar Mass (kg/mol) 239.1
Vapour Density (kg/m³) 25°C 29.6
GWP 547
ODP Non-ozone depleting
REACH Registered
ATEL/ODL (kg/m³) 0.33
Practical Limit (kg/m³) 0.32
Low Flammability Level Non flammable
Download TDS (2 MB) | Download MSDS