Dichlorodifluoromethane
- CCl2F2
- CAS Number 75-71-8
- UN1028 (gas)
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Liquid / Gas Volumes
Calculate the volume or mass of a quantity of gas or liquid
Liquid Phase
At boiling point at 1.013 bar
Gas Phase
In standard conditions (1.013 bar, 15°C)
Physical Properties
Molecule phase diagram showing the transition phases between solid, liquid and gas as a function of temperature and pressure
-
- Molar mass 120.914 g/mol
- Content in dry air /
-
Critical Point
- Temperature 111.80 °C
- Pressure 41.25 bar
- Density 557.21 kg/m³
-
Triple Point
- Temperature -157.05 °C
- Pressure 2.449E-6 bar
Pressure 1.013 bar
| Latent heat of fusion (at melting point) | 34.239 kJ/kg |
| Melting point | - 158 °C |
Pressure 1.013 bar
| Boiling point | - 29.75 °C |
| Latent heat of vaporization (at boiling point) | 166.172 kJ/kg |
| Liquid density (at boiling point) | 1487.004 kg/m3 |
| Compressibility factor Z | 9.746E-1 |
| Cp/Cv ratio γ | 1.1498 |
| Gas density (at boiling point) | 6.288 kg/m3 |
| Gas density | 5.5352 kg/m3 |
| Gas/(liquid at boiling point) equivalent | 268.71 vol/vol |
| Heat capacity Cp | 5.9061E-1 kJ/(kg.K) |
| Heat capacity Cv | 5.1367E-1 kJ/(kg.K) |
| Specific gravity | 4.3 |
| Specific volume | 1.807E-1 m3/kg |
| Thermal conductivity | 8.733 mW/(m.K) |
| Vapor pressure | 3.084 bar |
| Viscosity | 1.0761E-4 Po |
| Compressibility factor Z | 9.7867E-1 |
| Cp/Cv ratio γ | 1.1429 |
| Gas density | 5.2252 kg/m3 |
| Gas/(liquid at boiling point) equivalent | 284.65 vol/vol |
| Heat capacity Cp | 6.0358E-1 kJ/(kg.K) |
| Heat capacity Cv | 5.2809E-1 kJ/(kg.K) |
| Specific gravity | 4.3 |
| Specific volume | 1.914E-1 m3/kg |
| Thermal conductivity | 9.46 mW/(m.K) |
| Vapor pressure | 4.911 bar |
| Viscosity | 1.1391E-4 Po |
| Compressibility factor Z | 9.809E-1 |
| Cp/Cv ratio γ | 1.139 |
| Gas density | 5.0385 kg/m3 |
| Gas/(liquid at boiling point) equivalent | 295.2 vol/vol |
| Heat capacity Cp | 6.1218E-1 kJ/(kg.K) |
| Heat capacity Cv | 5.3745E-1 kJ/(kg.K) |
| Specific gravity | 4.3 |
| Specific volume | 1.985E-1 m3/kg |
| Thermal conductivity | 9.95 mW/(m.K) |
| Vapor pressure | 6.513 bar |
| Viscosity | 1.1806E-4 Po |
Applications
Examples of uses of this molecule in Industry and Healthcare
Safety & Compatibility
GHS04
Gas under pressure
GHS09
Hazardous to the environment
Threshold of toxicity
| PEL USA OSHA (vol) | 1000 ppm |
| VLEP 8h France (at Patm and 293.15 K) | 4950 mg/m3 or 1000 ppm |
Odor
Slightly ethereal
Metals
| Aluminium | Satisfactory |
| Brass | Satisfactory |
| Monel | No data |
| Copper | No data |
| Ferritic Steel | Satisfactory |
| Stainless steel | Satisfactory |
| Zinc | No data |
| Titanium | No data |
Plastics
| Polytetrafluoroethylene |
Risk of permeation
Acceptable
|
| Polychlorotrifluoroethylene |
Significant swelling
Acceptable
|
| Polyvinylidene fluoride | Satisfactory |
| Polyvinyl chloride | Satisfactory |
| Ethylene tetrafluoroethylene | No data |
| Polycarbonate | No data |
| Polyamide | Satisfactory |
| Polypropylene |
Significant swelling
Not recommended
|
Elastomers
| Butyl (isobutene- isoprene) rubber |
Significant swelling
Not recommended
|
| Nitrile rubber |
Significant swelling
Acceptable
|
| Chloroprene | Satisfactory |
| Chlorofluorocarbons | No data |
| Silicone |
Significant swelling and risk of permeation
Not recommended
|
| Perfluoroelastomers |
Significant swelling
Acceptable
|
| Fluoroelastomers |
Significant swelling
Acceptable
|
| Neoprene | No data |
| Polyurethane | Satisfactory |
| Ethylene-Propylene |
Significant swelling
Not recommended
|
Lubricants
| Hydrocarbon based lubricant |
Significant loss of mass
Not recommended
|
| Fluorocarbon based lubricant |
Significant loss of mass
Not recommended
|
Materials compatibility
Recommendations : Air Liquide has gathered data on the compatibility of gases with materials to assist you in evaluating which materials to use for a gas system. Although the information has been compiled from what Air Liquide believes are reliable sources (International Standards: Compatibility of cylinder and valve materials with gas content; Part 1- Metallic materials: ISO11114-1 (March 2012), Part 2 - Non-metallic materials: ISO11114-2 (April 2013), it must be used with extreme caution and engineering judgement. No raw data such as these can cover all conditions of concentration, temperature, humidity, impurities and aeration. It is therefore recommended that this table is only used to identify possible materials for applications at high pressure and ambient temperature. Extensive investigation and testing under the specific conditions of use need to be carried out to validate a material selection for a given application. Contact the regional Air Liquide team for expertise service.
Learn More
More information
Due to their ozone-depleting effect, the production of refrigerants is continuously decreasing, based on Montreal protocol requirements. Their use is controlled and they are progressively being replaced.