CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | 1,2-Dichloro-1,1,2,2-tetrafluoroethane is a colorless, nearly odorless nonflammable gas. It may be mildly toxic and irritating by inhalation. It can asphyxiate by the displacement of air. Exposure of the container to prolonged heat or fire can cause it to rupture violently and rocket. It is used as a solvent and as a fire extinguishing agent. |
|---|---|
| Color/Form | Colorless gas ... [Note: A liquid below 38 degrees F. Shipped as a liquefied compressed gas] |
| Odor | Faint, ether-like odor at high concentrations |
| Boiling Point | 38.8 °F at 760 mmHg (USCG, 1999) |
| Melting Point | -137 °F (USCG, 1999) |
| Solubility | 0.01 % (NIOSH, 2023) |
| Density | 1.455 g/cu cm at 25 °C |
| Vapor Density | 1.455 at 77 °F (USCG, 1999) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure | 2616.02 mmHg (USCG, 1999) |
| LogP | log Kow = 2.82 |
| Henry's Law Constant | Henry's Law constant = 1.25 atm-cu m/mol at 25 °C |
| Stability/Shelf Life | Conditions contributing to instability: heat. |
| Decomposition | Dangerous; When heated to decomp ... they evolve highly toxic /hydrogen/ chloride fumes. /Chlorides/ |
| Viscosity | 0.012 cP at 60 °C (gas) |
| Corrosivity | Noncorrosive |
| Heat of Vaporization | 23.3 kJ/mol at 3.5 °C |
| Refractive Index | Index of refraction: 1.3092 at 0 °C/D |
| Relative Evaporation Rate | >1 (Butyl acetate = 1) |
| Kovats Retention Index | 350.5 359 352 352 361 |
| Other Experimental Properties | Surface tension: 13 dynes/cm at 77 °C |
| Chemical Classes | Solvents -> Chlorofluorocarbons |
SAFETY INFORMATION
| Signal word | Warning |
|---|---|
| Pictogram(s) |
 Gas Cylinder Compressed Gases GHS04  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H280:Gases under pressure H420:Hazardous to the ozone layer |
| Precautionary Statement Codes |
P410+P403:Protect from sunlight. Store in a well-ventilated place. P502:Refer to manufacturer/supplier for information on recovery/recycling |
COMPUTED DESCRIPTORS
| Molecular Weight | 170.92 g/mol |
|---|---|
| XLogP3 | 2.8 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 1 |
| Exact Mass | 169.9313180 g/mol |
| Monoisotopic Mass | 169.9313180 g/mol |
| Topological Polar Surface Area | 0 Ų |
| Heavy Atom Count | 8 |
| Formal Charge | 0 |
| Complexity | 78 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
1,2-Dichloro-1,1,2,2-tetrafluoroethane is a colorless, nearly odorless nonflammable gas. It may be mildly toxic and irritating by inhalation. It can asphyxiate by the displacement of air. Exposure of the container to prolonged heat or fire can cause it to rupture violently and rocket. It is used as a solvent and as a fire extinguishing agent.