Classification of explosives

[shady mutha]

Explosives may be classified both from the chemical point of view and according to their uses.From the chemical viewpoint we distinguish between chemical individual substances and mixtures.
The former are divided into:
(1)nitro compounds
(2)nitric esters
(3)nitramines
(4)derivatives of chloric and perchloric acids
(5)azides
(6)various componds capable of producing an explosion,for example fulminates,acetylides,nitrogen rich compounds such as tetrazene,peroxides and ozonides,ect
Individual substances are explosive if their molecules contain groups which confer upon them explosive properties.The first attempt at systematic approach to the relation between the explosive properties of a molecule and its structure was made by vant Hoff.He pointed out,that in the molecules of explosive compounds the following groups were present:
O----O in peroxides and ozone and ozinides
O----Cl in chlorates and perchlorates
N----Cl in nitrogen chloride
N====O in nitro compounds,nitric acid esters and salts
N====N in diazo compounds,hydrazoic acid,its salts and esters
N====C in fulminates and cyanogen
C====C in acetylene and acetylides
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