R32 Refrigerant Technical Data Sheet
Technical Data Sheet(TDS) Difluoromethane CH₂F₂ R32, and.
1 Product Identification
| Item | Value |
|---|---|
| Product Name | R32 Refrigerant |
| Chemical Name | Difluoromethane |
| English Name | Difluoromethane |
| Molecular Formula | CH₂F₂ |
| Molecular Weight | 52.02 |
| CAS Registry Number | 75-10-5 |
| EINECS No. | 200-839-4 |
| UN Number | 3252 |
| Transport Hazard Class | Class 2.1, flammable gas |
| ASHRAE Safety Classification | A2L(Low toxicity, mildly flammable) |
| Reference Basis | Manufacturer data; the batch COA governs |
Reference Basis: Compiled from manufacturer data (safety classification per GB/T 7778, ASHRAE 34 / ISO 817)
2 Physical & Chemical Properties
R32 Typicaldata, system and,.
| Item | Typical Value |
|---|---|
| Appearance | Colorless, transparent liquefied gas |
| Odor | Slight ethereal odor, non-irritating |
| Boiling Point (101.3 kPa) | -51.7 ℃ |
| Freezing Point | -136.0 ℃ |
| Critical Temperature | 78.1 ℃ |
| Critical Pressure | 5.78 MPa |
| Critical Density | 424 kg/m³ |
| Vapor Pressure (25 C, absolute) | 1.70 MPa |
| Liquid Density(25 ℃) | 961 kg/m³ |
| Liquid Density(-51.7 ℃, ) | 1180 kg/m³ |
| Saturated Vapor Density(25 ℃) | 44 kg/m³ |
| Latent Heat of Vaporization (at boiling point) | 390 kJ/kg |
| Liquid Specific Heat(25 ℃) | 1.84 kJ/(kg·K) |
| Vapor Specific Heat(25 ℃, 101.3 kPa) | 0.85 kJ/(kg·K) |
| Liquid Thermal Conductivity(25 ℃) | 0.186 W/(m·K) |
| Vapor Thermal Conductivity(25 ℃) | 0.0135 W/(m·K) |
| Liquid Viscosity(25 ℃) | 0.12 mPa·s |
| Vapor Viscosity(25 ℃) | 0.0125 mPa·s |
| Surface Tension(25 ℃) | 8.2 mN/m |
| Water Solubility(25 ℃) | Slightly soluble, approx. 0.3 g/L |
| Auto-Ignition Temperature | 648 ℃ |
| Flammability Limits in Air (vol.%) | 13.5 % ~ 27.5 % |
| OEL (8 h TWA) | 1000 ppm |
| Ozone Depletion Potential (ODP) | 0 |
| GWP (100 yr, IPCC AR5) | 675 |
| Atmospheric Lifetime | approx. 4.9 years |
3 Quality Specifications & Test Methods
R32 Parameter, Batch COA.
| Item | Parameter | Test Method |
|---|---|---|
| Appearance | Colourless and clear, free of suspended matter and mechanical impurities | Visual inspection |
| Purity | ≥ 99.90 % (High-purity grade ≥ 99.95 %) | Gas chromatography GC-FID |
| Moisture | ≤ 10 ppm (High-purity grade ≤ 8 ppm) | Karl Fischer coulometric method |
| Acidity( HCl ) | ≤ 0.1 ppm | Alkali absorption - potentiometric titration |
| Evaporation Residue | ≤ 0.01 % | Gravimetric method |
| Non-Condensable Gas(, 25 ℃) | ≤ 1.5 % | Gas chromatography |
| Oxygen content in vapour phase | ≤ 0.05 % | Gas chromatography |
| (Cl⁻) | Negative (pass) | Silver nitrate turbidimetry |
4 Comparison with Common Refrigerants
| Comparison Item | R32(this product) | R410A | R22 |
|---|---|---|---|
| Composition | Single compound CH₂F₂ | R32/R125 50/50 Mixture | Single compound CHClF₂ |
| ODP | 0 | 0 | 0.055 |
| GWP(100 years, AR5) | 675 | 2088 | 1810 |
| ASHRAE Safety Classification | A2L | A1 | A1 |
| Relative charge | approx. R410A 70 % | Baseline 100 % | approx. 105 % |
| Relative COP | Slightly higher, approx. +4 % ~ +8 % | Baseline | — |
| compressor Discharge temperature | Higher, liquid injection or suction cooling | Medium | Low |
| Operating pressure | Slightly higher than R410A | approx. R22 1.6 | Low |
| Compatible lubricant | POE( PVE) | POE | Mineral oil / alkylbenzene |
| Current selection | air conditioning and heat pump refrigerant | existing installed basesystem servicing | existing installed base servicing |
5 Packaging Specifications
| Package Type | Specification | Filling Ratio | Valve Connection | Application |
|---|---|---|---|---|
| disposable cylinder | 9.5 kg(customizable 5 kg / 13.6 kg) | ≤ 0.78 kg/L | W21.8-14(customizable CGA / DIN) | air conditioning Servicing and small-batch use |
| steel cylinder | 400 kg(T ) | ≤ 0.78 kg/L | W21.8-14 | bulk supply |
| cylinder pallet | 12 × 9.5 kg | Per cylinder | W21.8-14 | Distribution via service networks |
| ISO ISO tank | approx. 18 t | per ISO tank | ISO tankconnection | and Transport |
Filling Ratioper"", steel cylinderper.
6 Applications
- air conditioning(,, )
- air conditioning and (VRF)
- heat pump and Lowheat pump
- air conditioning, air conditioning and
Equipment Compatibility & Charging Advice
- POE, refrigerantsystem.
- R32 Discharge temperature R410A, compressorliquid injection or suction cooling.
- systemper R32, R22 system.
- chargingper equipment, ASHRAE 15 A2L refrigerant and Maximum charge.
- charging and ventilation, 3 open flames and High temperatureheat source.
7 Storage & Transport
- Storage,, ventilation, 40 ℃, ignition source, heat source and.
- steel cylinder, and,,, and.
- A2L Flammable refrigerant, Flammable and explosion-proofventilation, equipmentperexplosion-proof.
- and oxygen, and (,, )Flammable.
- and, Low 0.05 MPa.
- Transportper Danger 2.1 class, Firefighting and, and.
8 Safety & Handling
- Flammability and explosion riskR32 A2L Mildly flammable refrigerant, Spillage confined space flammable mixture, open flames, High temperature or sparks Flammability and explosion risk.
- Spillageignition sourceventilation,; and;leak detection or leak detection, open flamesleak detection.
- Firefightingor carbon dioxide Firefighting, steel cylinder. Spillage Flame,.
- frostbite ProtectionLiquefied gasfrostbite, and;frostbite 40 ℃.
- Inhalation andVapourasphyxiation and, fresh airoxygen;Eye contact 15.
- Avoid release to the environment and dispose of waste properly.charging and ventilation, and ignition source, Flammable and leak detection.
9 Quality Assurance & Shipping Documents
- Batch COA, Purity, Moisture, Acidity and Evaporation Residue.
- Moisture, and Low temperature.
- 12 months, Batch, No. and.
- perthird-party test report(SGS / ), SDS Description REACH, RoHS.
10 Frequently Asked Questions
R32 Can it directly replace R410A ？
. R32 Single compound A2L Mildly flammable, Discharge temperature and R410A, R32 equipment. R410A system R32, compressor, per R32, retrofit and.
R32 Why is a dedicated cylinder valve required?
R32 and R410A steel cylinder W21.8-14 threadconnection, and R22 refrigerant Specification,. steel cylinder, system and.
R32 Shelf life?
steel cylinder, Storage, R32 Shelf Life 24 months., steel cylinder and.
R32 GWP 675 Regulations？
R32 ODP 0, GWP 675, R410A(2088) and R22(1810), residential air conditioning refrigerant, "Kigali Amendment"phase-down HFC. Item GWP, R290(GWP 3) or R1234yf.
Disclaimer
Specificationdata Typical,;Parameter Batch COA. and, or or, equipment and Regulations.
Specificationdata Typical,;Parameter Batch COA. and, or or, equipment and Regulations.
| Reviewed by: | Approved by: | Hubei Zhongjin Fluorine Chemical Co., Ltd.
Get R32 Technical Data Sheet & Quotation
Word Specification and, or Direct Contact sales teamGetBatch Test Report and Quotation.