Ncloro fluoro carbono pdf

The rest of the unaccounted carbon bonds are occupied by chlorine atoms. Create marketing content that resonates with prezi video. Singular plural clorofluorocarbono clorofluorocarbonos. Cfc adalah singkatan dari chloroflourocarbon yang terbentuk dari atom chlor, flour, dan carbon. Degradation mechanisms and substituent effects of nchloro. Hydrochlorofluorocarbon chemical compound britannica.

Ch3 ch3 2methylhexane 3methylhexane consider two of the compounds we produced while finding all the isomers of c7h16. Fluorocarbons, sometimes referred to as perfluorocarbons or pfcs, are, strictly speaking, organofluorine compounds with the formula c x f y, i. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. The main advantage of this method of deducing the molecular. Compounds with the prefix perfluoroare hydrocarbons, including those with heteroatoms, wherein all ch bonds have been replaced by cf bonds. Corrispondono agli idrocarburi nei quali tutti o parte degli atomi didrogeno sono stati sostituiti da atomi di cloro e fluoro. In 1990, 93 nations agreed, as part of the montreal protocol established 1987, to end production of ozonedepleting chemicals by the end of the 20th century. An atom usually carbon with 4 different substituents is called a stereogenic center or stereocenter. Cfc merupakan zatzat yang tidak mudah terbakar dan tidak terlalu beracun. The value of this equation is always a three figure number. Sono caratterizzati da elevata stabilita chimica e termica, che aumenta con il contenuto di fluoro, sono ininfiammabili e poco tossici. Essas formacoes organofluorinas possuem uma grande participacao em refrigerantes.

Chlorofluorocarbon cfc is an organic compound that contains carbon, chlorine, and fluorine, produced as a volatile derivative of methane and ethane. E um reagente usado na quimica sintetica e foi muito usado como agente extintor e como agente refrigerante. Clorofluorocarboneto wikipedia, a enciclopedia livre. Clorofluorocarbonos by daniela jara gonzalez on prezi. Because of a growing concern over stratospheric ozone depletion and its attendant dangers, a ban was imposed on the use of cfcs in aerosolspray dispensers in the late 1970s by the united states, canada, and the scandinavian countries.

Cfc merupakan gas yang berwarna biru tua, stabil, tidak mudah terbakar, mudah disimpan, dan murah harganya. A common subclass is the hydrochlorofluorocarbons hcfcs, which contain hydrogen, as well. Satu buah molekul cfc memiliki masa hidup 50 hingga 100 tahun dalam atmosfer sebelum dihapuskan. Identification of the substancemixture and of the companyundertaking 1. Similiar molecules click here to search for similiar molecules. I cfc composti da cloro, fluoro e carbonio hanno una vita media piuttosto lunga che ne facilita laccumulo e non reagiscono facilmente con altre sostanze. Esempi di clorofluorocarburi sono il diclorodifluorometano, ccl2f2, e il diclorotetrafluoroetano, cclf2cclf2. Alotropos do carbono o carbono e um dos elementos mais abundantes no universo, sendo um elemento impressionante, sobretudo em relacao as suas ligacoes quimicas. A special numbering system is to be used for fluorinated alkanes, prefixed with freon, r, cfc and hcfc, where the rightmost value indicates the number of fluorine atoms, the next value to the left is the number of hydrogen atoms plus 1, and the next value to the left is the number of carbon atoms less one zeroes are not stated, and the remaining atoms are chlorine. Posted on marzo 12, 2012 actualizado enn marzo 12, 2012. Tetracloroetileno tetrachloroethylene toxfaq atsdr.