"Jesper Moesgaard" <Xj_moesgaard@vip.cybercity.dk> skrev i en meddelelse
news:43bae236$0$8848$edfadb0f@dread14.news.tele.dk...
> Ofte læser man om, at en eksplosion svarede til fx 70 tons trotyl (TNT).
> Hvad er TNT (kemisk set) og hvordan sammenligner man (omregner) man tons
TNT
> til en 'eksplosion'?
>
TNT: 2,4,6-Trinitrotoluene
Kloge Åge siger (wikipedia):
Trinitrotoluene (TNT, or Trotyl) is a pale yellow crystalline aromatic
hydrocarbon compound that melts at 354 K (178 °F, 81 °C). Trinitrotoluene is
an explosive chemical and a part of many explosive mixtures, such as when
mixed with ammonium nitrate to form amatol. It is prepared by the nitration
of toluene C6H5CH3, or in simpler terms C7H8 (with some loss of information
about the molecular structure), it has a chemical formula of C6H2(NO2)3CH3,
and IUPAC name 2,4,6-trinitromethylbenzene
Amounts of TNT are used as units of energy, especially for expressing
nuclear weapon yield, based on a specific combustion energy of TNT of 4.184
MJ/kg (or one calorie-specifically a thermochemical calorie-per milligram).
Hence 1 kt TNT = 4.184 TJ, 1 Mt TNT = 4.184 PJ. Note that chemical
explosives release less energy per kilogram than everyday household products
like fat (38 MJ/kg) or sugar (17 MJ/kg); they do, however, release their
combustion energy much more rapidly. One reason for their low power is that
they contain their oxidant as well as the fuel - an explosive does not use
atmospheric oxygen. The density of pure TNT (without any additives like
sawdust or aluminium) is 1.654 g/cm³.
Jan Pedersen
Læs selv videre:
http://en.wikipedia.org/wiki/TNT_(explosive)