141B

141B is a chemical compound known as 1,1,1,2-Tetrafluoroethane or R-141b, commonly used as a refrigerant and foam blowing agent. It belongs to the class of hydrofluorocarbons (HFCs), which are chemical compounds containing carbon, hydrogen, fluorine, and sometimes other elements. R-141b is favored for its low ozone-depleting potential and intermediate global warming potential compared to older chlorofluorocarbon (CFC) and hydrochlorofluorocarbon (HCFC) refrigerants.

Chemically, 141B has the molecular formula C2H3F4, with a molecular weight of approximately 114.02 g/mol. Its physical properties include a boiling point of around -8.5°C at atmospheric pressure and a vapor density higher than air, which influences its handling and containment.

Historically, 141B was widely used in refrigeration systems, aerosol propellants, and foam manufacturing due to its favorable chemical stability and non-flammability. However, with increasing environmental regulations aimed at reducing greenhouse gases, the use of R-141b has declined in favor of more sustainable alternatives.

Environmental concerns associated with 141B include its contribution to global warming, as it has a relatively high global warming potential (GWP). Consequently, regulations have been implemented in many countries to phase out or restrict its use and production.

In industry, R-141b is often replaced by hydrofluoroolefins (HFOs) or other low-GWP refrigerants that provide similar performance with reduced environmental impact. Despite these shifts, R-141b remains a significant chemical in historical and certain niche industrial applications, especially where its thermodynamic properties are advantageous.