Industrial chemistry
Refrigerant R-123 (Dichlorotrifluoroethane)
Other names: 1,1,1-Trifluoro-2,2-dichloroethane, Dichlorotrifluoromethylmethane, Dichlorotrifluoroethane, Freon 123, HCFC-123, R-123
CAS №: 306-83-2
EC №: 206-190-3
Molecular formula: C2HCI2CF3
Refrigerant R-123 is a clear and colorless liquid. The ASHRAE safety rating for R-123 is B1, which indicates that lower levels for personal exposure are allowed in normal daily operation and service conditions. Extra precautions and machinery room requirements must be observed (specific requirements are spelled out in ASHRAE Standard 15, Safety Code for Mechanical Refrigeration).
Use:
• Retrofit R-11,
• Component mixed halocarbons,
• Foaming agent,
• Raw materials for organofluoric synthesis,
• The coolant (heat pumps).
Physical properties
| Molecular weight | g/mol | 152.98 |
| Boiling point | °C | 27.6 |
| Melting point | °C | -107 |
| Critical temperature | °C | 183.67 |
| Critical pressure | MPa | 3.673 |
| Vapor pressure | kPa | 89.3 |
| Critical density | g/cm3 | 0.549 |
| Liquid density, 25°C | g/cm3 | 1.46 |
| Specific heat of liquid, 25°C | g/cm3 | 0.985 |
| Solubility in water | % | 0.39 |
| ODP (CFC-11=1.0) | 0.02 | |
| GWP (CO2=1.0) | 77 |
Quality standard
| Appearance | Colorless, no turbid |
| Odor | Odorless |
| Purity, % | 99.8 |
| Water, % | 0.002 |
| Acidity, % | 0.0001 |
| Residue on evaporation, % | 0.01 |
Package:
• Steel cylinder, 13.6 kg,
• Steel drum, 250 kg,
• Isotank.