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R32 REFRIGERANT

R32 Difluoromethane Refrigerant

Alias: Difluoromethane, CH₂F₂ | Formula: CH₂F₂ | CAS: 75-10-5

High-purity R32 (Difluoromethane) refrigerant supplied by Anhui Kaierwen, air conditioning, commercial refrigeration and heat pumps. Purity ≥99.9%, in stock with nationwide delivery and full technical support.

ODP (Ozone Depletion)
0
GWP (Global Warming)
675
Boiling Point (101.3 kPa)
-51.7 ℃
Safety Class
A2L (Low toxicity, Mildly flammable)
Reference Price Contact for quote
Request a Quote +86 551 6558 9290

Physical & Chemical Properties

R32 Refrigerant Physical & Chemical Properties
Chemical NameR32 Difluoromethane Refrigerant
Molecular FormulaCH₂F₂
Molecular Weight52.02
Boiling Point (101.3 kPa)-51.7 ℃
Critical Temperature78.1 ℃
Critical Pressure5.78 MPa
Liquid Density (25℃)961 kg/m³
ODP (Ozone Depletion Potential)0
GWP (Global Warming Potential)675
ASHRAE Safety ClassA2L (Low toxicity, Mildly flammable)

Key Features

  • 1Mature thermodynamics with stable performance and high volumetric refrigeration capacity
  • 2Chemically stable, compatible with common refrigerants and lubricants
  • 3Wide applicable temperature range with strong system adaptability
  • 4Cost-effective and widely available for both new systems and service/retrofit

Applications

  • 1Residential split and window air conditioners (charging & service)
  • 2Commercial central A/C and chillers
  • 3Cold storage and refrigerated display cases
  • 4Industrial process cooling

Quality Specifications

R32 Refrigerant Quality Specifications
AppearanceColorless, transparent, free of turbidity
OdorOdorless
Purity≥ 99.9 %
Moisture≤ 10 ppm
Acidity (as HCl)≤ 1 ppm
Evaporation Residue≤ 0.01 %
Executing StandardGB/T 34011-2017

Packaging

3 kg / 5 kgDisposable steel cylinder
10 kgDisposable steel cylinder
24.5 kgRefillable steel cylinder
400 kg / 800 kgRefillable steel cylinder

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

Precautions

Safety Notice

Handle R32 only by qualified personnel. It is flammable — keep away from ignition sources and ensure adequate ventilation. Refer to the SDS and local regulations for safe use, recovery and disposal.

Storage & TransportStore in a cool, well-ventilated warehouse away from fire and heat sources; temperature not above 52℃. Keep separated from oxidizers and acids. Cylinders must be periodically inspected; handle gently to avoid damage.

Frequently Asked Questions

Which refrigerants can replace R32?
Common replacements for R32: lower-GWP R454B, R452B（, subject to equipment suitability）. Suitability depends on system design and operating conditions — our technical team can confirm the right choice for your equipment.
What are the GWP and ODP values of R32? Is it regulated?
R32 has a GWP of 675 and an ODP of 0 (ASHRAE safety class A2L (Low toxicity, Mildly flammable)). HFCs have been under quota management since 2024 and are on the controlled list.
Is R32 safe? What is its safety classification?
R32 is ASHRAE class A2L (Low toxicity, Mildly flammable). Handle R32 only by qualified personnel. Full GHS classification, first-aid and firefighting measures are in the safety data sheet (SDS).
What is the purity of R32, and which standard does it meet?
R32 is supplied at ≥ 99.9 % purity, meeting GB/T 34011-2017. Each batch is tested by gas chromatography, and the batch report is available on request.
What packaging options are available for R32?
Available packaging: 3 kg / 5 kg Disposable steel cylinder, 10 kg Disposable steel cylinder, 24.5 kg Refillable steel cylinder, 400 kg / 800 kg Refillable steel cylinder. Minimum order quantity and lead time — contact us for a quote.

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