1 / 7

5.4 Halogen Derivatives

5.4 Halogen Derivatives. 5.4.1 Halogeno Compounds. LO: I know a variety of uses for halogeno compounds. NAME. STRUCTURE. USE. trichloromethane. anaesthetic. (chloroform). 1,1,1-trichloroethane. solvent. chloroethene. manufacture of PVC. (vinylchloride). manufacture of Teflon.

smarrufo
Download Presentation

5.4 Halogen Derivatives

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. 5.4 Halogen Derivatives 5.4.1 Halogeno Compounds LO: I know a variety of uses for halogeno compounds

  2. NAME STRUCTURE USE trichloromethane anaesthetic (chloroform) 1,1,1-trichloroethane solvent chloroethene manufacture of PVC (vinylchloride) manufacture of Teflon tetrafluoroethene LO: I know a variety of uses for halogeno compounds

  3. 5.4.2 Chlorofluorocarbons LO: I understand the structure and properties of CFCs

  4. Chlorofluorocarbons are based on alkane molecules where the hydrogens have been replaced by a mixture of chlorine and fluorine. dichlorodifluoromethane neutral insoluble unreactive non-flammable easily liquefied refrigerant long lasting propellant LO: I understand the structure and properties of CFCs

  5. CFCs were used as refrigerants instead of ammonia and sulphur dioxide which are . toxic CFCs were used as propellants instead of propane and as they were not as dangerous (non-flammable). butane The use of CFCs was banned when it was discovered that they destroy . ozone LO: I understand the structure and properties of CFCs

  6. 5.4.3 Ozone LO: I understand how CFCs cause a problem for the ozone layer.

  7. uv Ozone provides a protective layer around the Earth against the damaging effects of radiation. uv UV radiation for the sun is responsible for the formation of in the upper atmosphere: ozone O2 O + O O + O2 O3 (ozone) UV radiation also splits CFCs in the upper atmosphere to produce atoms. chlorine Chlorine atoms react with , destroying it. ozone LO: I understand how CFCs cause a problem for the ozone layer.

More Related