Hydrofluoroether

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Methylnonafluor- n -butyl ether

Hydrofluoroethers (HFE) are among the fluorinated organic compounds. They were originally developed to replace ozone-depleting chemicals such as CFC , HFC , HCFC and PFC . They are colorless and almost odorless, tasteless, have a low viscosity and have a boiling point above room temperature.

Because of their high molecular weight , they only have a very short atmospheric lifespan , which is less than two weeks. Although it is a greenhouse gas , the EPA does not regulate its use as it has a short life span in the atmosphere and zero ozone depletion potential compared to alternative chemicals . The 3M company sells these liquids under the trade name Novec. Commercially available are for example Methylnonafluor- n -butyl ether , Methylnonafluor- iso -butyl ether , Ethylnonafluor- n -butyl ether and Ethylnonafluor- iso -butyl ether or mixtures thereof.

See also

Individual evidence

  1. W. Tsai: Environmental risk assessment of hydrofluoroethers (HFEs). In: Journal of Hazardous Materials . 119, 2005, p. 69, doi : 10.1016 / j.jhazmat.2004.12.018 .
  2. a b Barbara Kanegsberg, Edward Kanegsberg: Handbook for Critical Cleaning . CRC Press, 2000, ISBN 978-1-4200-3982-5 , pp. 88 ( limited preview in Google Book search).
  3. Cleaning with hydrofluoroether (HFE). All-Electronics.de, September 24, 2007, accessed on July 24, 2019 .