R 513A Refrigeration Gas

R 513A Refrigeration Gas Specification

R-513A (marketed as Opteon XP10 or Solstice 513A) is a non-flammable, low Global Warming Potential (GWP) azeotropic refrigerant blend used as a replacement for R-134a. It is a liquefied gas that acts as an asphyxiant in high concentrations and can cause freeze burns on contact.

Safety Data Sheet (MSDS) Information

Hazards Identification

Physical State: Clear, colorless liquefied gas with a slight ethereal odor.
Flammability: Non-flammable (ASHRAE A1 safety classification) under normal conditions, but mixtures with air or oxygen under pressure may be flammable or reactive.
Health Hazards:
- Inhalation: Vapors are heavier than air and can displace oxygen, causing asphyxiation. High concentrations can cause anesthetic effects (dizziness, weakness, nausea, unconsciousness) and an abnormal, potentially fatal, heart rhythm.

Environmental Hazards: A fluorinated greenhouse gas with a GWP of approximately 573 (IPCC AR5) and zero ozone depletion potential (ODP). Should not be released into the environment.

First Aid Measures

Inhalation: Move to fresh air. If breathing is irregular or stops, perform artificial respiration and seek medical attention.
Skin Contact: Immediately drench with running water for 10 minutes or longer. Do not use hot water. If frostbite occurs, seek medical attention.
Eye Contact: Bathe eye with running water for at least 15 minutes, pulling eyelids up. Seek specialist medical attention.
Ingestion: Not applicable for a gas.
Note to Physician: Do not give adrenaline or similar drugs.

Handling and Storage

Ensure adequate ventilation in storage and work areas, especially in confined or low places where heavy vapors might collect.
Store in a cool, well-ventilated area below 52C (126F), away from heat sources, hot surfaces, and flames.
Wear appropriate personal protective equipment (PPE), including safety glasses and low-temperature resistant gloves.
Avoid contact with finely powdered metals (aluminum, magnesium, zinc), strong alkalis, and strong oxidizing agents.

Technical Data and Properties

R-513A is an azeotropic blend of HFO-1234yf (56%) and HFC-134a (44%).

Property	Value	Source
ASHRAE #	R-513A
Composition	56% R-1234yf / 44% R-134a by mass
Safety Classification	A1 (Non-flammable, Low Toxicity)
Ozone Depletion Potential (ODP)	0
Global Warming Potential (GWP)	573 (IPCC AR5) or 631 (IPCC AR4)
Molecular Weight	108.4 g/mol
Boiling Point at 1 atm	-29.2 C (-20.6 F)
Vapor Density (air=1)	3.83
Temperature Glide	Essentially 0 K (azeotropic blend)
Typical Lubricant	POE (Polyolester)

Applications and Use

R-513A is primarily used as a high-performance, lower GWP alternative to R-134a in new and retrofitted systems, including:

Medium- and high-temperature commercial and industrial direct-expansion (DX) refrigeration.
Water and centrifugal chillers.
Air conditioning and heat pumps.
Medium-temperature circuits of two-stage hybrid cascade systems with CO2.
It offers an excellent capacity and efficiency match to R-134a and is compatible with existing equipment and POE oils, often allowing for easy retrofitting.

Honeywell Refrigerant