What Makes Nitrates So Explosive?

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SUMMARY

Nitrates are key components in explosives such as TNT, gunpowder, and dynamite. During an explosion, nitro (NO2) and nitrate (NO3) groups decompose into nitrogen gas (N2), releasing approximately -950 kilojoules/mol of energy when nitrogen triple bonds form. The formation of carbon monoxide (CO), carbon dioxide (CO2), and water (H2O) during the explosion further contributes to energy release. The rapid reaction rate and high pressure from the generated gases are critical factors in determining the explosive power.

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tsuwal
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I was wondering..

- TNT has nitrates
- Gunpowder has nitrates
- Dynamite has nitrates

Hmm.. so what makes nitrates so explosive?
 
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Nitro(NO2) and nitrate(NO3) groups in these substances decompose into nitrogen gas (N2) during the explosion. When a triple bond forms between the nitrogens, energy is released (~-950 kilojoules/mol). The formation of bonds in CO, CO2, H2O (products of TNT's explosion) also contribute to the release of energy. The fast rate of reaction combined with the high pressure created by the newly formed gasses play a key role in how powerful an explosion is.
 
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