Dichlorofluoroethane (HCFC-141b)
CH3CFCL2
CAS No.:75-43-4
Item |
Technical Index |
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Superior Grade |
First Grade |
Qualified |
|
Purity, % ≥ |
99.95 |
99.8 |
99.5 |
Moisture, % ≤ |
0.002 |
0.003 |
0.005 |
Mass fraction of vinylidene chloride and dichloro acetylene, % ≤ |
0.02 |
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Acidity (as HCl), % ≤ |
0.0001 |
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Evaporated residue, % ≤ |
0.01 |
• Under normal temperature and pressure, dichlorofluoroethane (HCFC-141b) is a non-toxic and colorless chemical with low ODP value and excellent chemical stability;
• It shows good chemical stability, can be stored at normal temperature without decomposition;
• Even being boiled, it does not corrode iron, stainless steel, copper, brass, aluminum and zinc, etc.;
• It is soluble in most organic solvents, alcohol and ether. It has excellent compatibility with grease and lubricant, has no obvious in effects on most polymers including plastics and rubbers;
• The toxicity trials conducted by the international society PAFT 11 indicates that it has an irritant effect on human skin and eyes, but inhalation of high-concentrated HCFC-141b will cause anesthetic effect.
• Since its physical and chemical properties are similar to those CFC-11, CFC-113, it can replace CFC-11 as foaming-agent for rigid or soft PU foam, or it can be a substitute for CFC-113 as metal cleaner and solder remover as well. It is a worldwide acknowledged CFCs substitute.
• Packed in iron drum. It should be stored in cool, dry and ventilated place, and kept away from sunlight and rain.
Physical and Chemical Properties:
• Liquid density: 1235 kg/m3, boiling point: 32.1℃,ignition limits(air):5.6-17.0%;
• Melting point: -103.5℃, flash point: --, critical temperature: 208.1℃ ?ODP value: 0.10, critical pressure: 4.34MPa.