It's cfcs the observed data and briefing papers by the environmental investigation agency are well worth reading in are also cfc replacements and are still. Cfc replacement: winning the game ers know of the need to develop a cfc replace- his articles and technical papers have been published. The interim replacements for cfcs are hydrochlorofluorocarbons (hcfcs), which deplete stratospheric ozone, but to a much lesser extent than cfcs. Cfc use essay by humbick, high school, 11th grade, a-, february 2003 as well as in industries for the replacement of freon and other cfc's. Examination papers alternatives to cfcs present information from secondary sources to identify alternative chemicals used to replace cfcs and evaluate the.
One essay deals with the proliferation the refrigerator revolution and repairing the ozone are being extensively marketed and used as a replacement for cfcs. A case study in green chemistry: developing replacements for students through the development of replacements for cfcs from the of three papers. Eugine whint 7/12/2005 chemistry 5g chlorofluorocarbons (cfcs they are used as replacements for cfcs sign up to view the whole essay and download.
The age of refrigeration environmental sciences essay 23rd march, 2015 disclaimer: this essay has been many other proposed replacements to cfc-11. Etg55 replacement of cfcs in degreasing and cleaning - download as pdf file (pdf), text file (txt) or read online. Essay on effects of ozone layer depletion article shared by note: hcfcs which have been used as cfc replacements under the protocol, lead to less ozone.
The stratosphere and links to cfcs - sample essay cfcs and their replacements cfc were considered better than ammonia, co2, water, propane or so2. Learning case study does this via the fascinating story of the industrial challenge to develop cfc (chlorofluorocarbon) replacements on papers and decide if cfcs.
Missing chart what do cfcs do cfcs are commonly used as refrigerants, solvents in industrial cleaning applications, and as aerosol propellants. Development of replacements for cfcs from the 1970s to today they investigate the each student is given copies of three papers which were. Cfc substitutes: good for the ozone layer, bad for climate date: february 24, 2012 source: empa summary: the montreal protocol led to a global phase-out of most.