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R31 REFRIGERANT

R31 Chlorofluoromethane Refrigerant

Alias: Chlorofluoromethane | Formula: CH₂ClF | CAS: 593-72-6

R31 (chlorofluoromethane) has a boiling point around -9.1℃. It can be used in low-temperature and blend applications. As an HCFC controlled substance it is now mainly for existing systems and specific blend formulations.

ODP (Ozone Depletion)
0.02
GWP (Global Warming)
27
Boiling Point (101.3 kPa)
about -9.1 ℃
Safety Class
A3 (Flammable)
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Physical & Chemical Properties

R31 Refrigerant Physical & Chemical Properties
Chemical NameR31 Chlorofluoromethane Refrigerant
Molecular FormulaCH₂ClF
Molecular Weight68.47
Boiling Point (101.3 kPa)about -9.1 ℃
Critical Temperatureabout 102.6 ℃
Critical Pressureabout 5.06 MPa
ODP (Ozone Depletion Potential)0.02
GWP (Global Warming Potential)27
ASHRAE Safety ClassA3 (Flammable)

Key Features

  • 1Boiling point about -9.1℃, for low/medium temperature
  • 2Can be a blend component
  • 3HCFC controlled substance
  • 4Purity ≥99.9%

Applications

  • 1Low-temperature refrigeration
  • 2Blend components
  • 3Specific industrial refrigeration
  • 4Research and experiments

Quality Specifications

R31 Refrigerant Quality Specifications
AppearanceColorless, transparent, free of turbidity
Purity≥ 99.9 %
Moisture≤ 10 ppm
Acidity (as HCl)≤ 1 ppm
Evaporation Residue≤ 0.01 %
Executing StandardCompliant with national and industry standards

Packaging

5 / 10 kgDisposable steel cylinder
40 kgRefillable steel cylinder

※ Packaging specs and labels can be customized; bulk orders can be delivered by tank truck.

Precautions

Safety Notice

R31 is an HCFC controlled and flammable substance; use and recover per regulations and prefer low-GWP alternatives for new systems. Critical parameters of blends are subject to manufacturer data.

Storage & TransportStore in a cool, ventilated, explosion-proof warehouse away from fire and heat; temperature not above 52℃. Keep separated from oxidizers and acids. Inspect cylinders periodically and handle gently.

Frequently Asked Questions

What are the GWP and ODP values of R31? Is it regulated?
R31 has a GWP of 27 and an ODP of 0.02 (ASHRAE safety class A3 (Flammable)). HCFC refrigerants are in the phase-out stage, with production and use under quota licensing.
Is R31 safe? What is its safety classification?
R31 is ASHRAE class A3 (Flammable). R31 is an HCFC controlled and flammable substance; use and recover per regulations and prefer low-GWP alternatives for new systems. Full GHS classification, first-aid and firefighting measures are in the safety data sheet (SDS).
What is the purity of R31, and which standard does it meet?
R31 is supplied at ≥ 99.9 % purity, meeting Compliant with national and industry standards. Each batch is tested by gas chromatography, and the batch report is available on request.
What packaging options are available for R31?
Available packaging: 5 / 10 kg Disposable steel cylinder, 40 kg Refillable steel cylinder. Minimum order quantity and lead time — contact us for a quote.
How should R31 be stored and transported?
Store in a cool, ventilated, explosion-proof warehouse away from fire and heat; temperature not above 52℃. Keep separated from oxidizers and acids. Inspect cylinders periodically and handle gently. Full handling and storage requirements are in Section 7 of the safety data sheet (SDS).

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