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Chlorotrifluoroethylene is produced commercially by the dechlorination of 1,1,2-trichloro-1,2,2-trifluoroethane with zinc: [3]. CFCl 2-CF 2 Cl + Zn → CClF=CF 2 + ZnCl 2. In 2012, an estimated 1–10 million pounds were produced commercially in the United States.
An easy example is that of CFC-12, which gives: 90+12=102 -> 1 carbon, 0 hydrogens, 2 fluorine atoms, and hence 2 chlorine atoms resulting in CCl 2 F 2. The main advantage of this method of deducing the molecular composition in comparison with the method described in the paragraph above is that it gives the number of carbon atoms of the molecule.
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106.2 136 1,1,2-Trichloro-1,2,2-trifluoroethane: 187.4 48 gasoline: 100 100 methylene chloride/dichloromethane: 84.9 41 4-methyl-2-pentanone/methyl isobutyl ketone: 100.2 117 2-methoxy-2-methylpropane/methyl tert-butyl ether: 88.1 55 perchloroethylene: 165.8 121 trichloroethene: 131.5 87 tert-butyl alcohol: 74.1 83 toluene: 92.1 111 trans-1,2 ...
Multiple groups are dichloro-, trichloro-, etc., and dissimilar groups are ordered alphabetically as before. For example, CHCl 3 is trichloromethane. The anesthetic halothane (CF 3 CHBrCl) is 2-bromo-2-chloro-1,1,1-trifluoroethane.
na 2 co 3 + co 2 + h 2 o → 2 nahco 3 It is produced on the scale of about 100,000 tonnes/year (as of 2001) [ dubious – discuss ] [ 96 ] with a worldwide production capacity of 2.4 million tonnes per year (as of 2002). [ 97 ]
Methane clathrate (CH 4 ·5.75H 2 O) or (4CH 4 ·23H 2 O), also called methane hydrate, hydromethane, methane ice, fire ice, natural gas hydrate, or gas hydrate, is a solid clathrate compound (more specifically, a clathrate hydrate) in which a large amount of methane is trapped within a crystal structure of water, forming a solid similar to ice.
Scheme of a 2+1 road Driving on a Swedish 2+1 road as it narrows from 2 lanes to 1 As the 2+1 road ends, overtaking cars face oncoming traffic. 2+1 road is a specific category of three-lane road, consisting of two lanes in one direction and one lane in the other, alternating every few kilometres, and usually separated with a steel cable barrier.