Nitroglycerine oxygen balance

If the amount of oxygen present in the explosive molecule is insufficient for the complete oxidation a negative oxygen balance will result this can be seen in the molecule TNT. Nitroglycerine, however, has a... 

Its chemical stability and sensitiveness to impact resembles those of nitroglycerine. It is an extremely strong explosive possessing a positive oxygen balance [8] ... 

Trimethylolnitromethane trinitrate has attracted considerable interest as an explosive owing to its ideal oxygen balance. Explosive decomposition results in production of heat exceeding that produced by nitroglycerine by 7%... 

Since C4 is an underoxidized explosive, the first candidate energetic materials considered are oxygen balanced or oxygen rich, nitroguanidine (NQ), and nitroglycerin (NG). Interestingly, lower fireball gas temperatures are predicted. This is because excess oxygen is entrained in the fireball which dilutes the secondary combustion. 

If a compound has a zero oxygen balance, this compound would be predicted to be very unstable and explosive—and it is. For example, ethylene glycol dinitrate (ethanediol dinitrate) has a zero oxygen balance and it is explosive and is used with nitroglycerin in conunercial explosives. This compound has within its own composition enough oxygen to produce fully oxidized products and is thus... 

The gun propellant H518, which contains a high amout of nitroglycerine, exhibits a very high heat of explosion of 5132 kJ/kg. The oxygen balance is -22.5 g O2/IOO g propellant. It was tested under the same conditions as A 5020. At first it was burned in an argon atmosphere of about 1 bar secondly, heavily confined in a closed bomb (see the results in Table 3). 

Based on the results of part a of Example Problem 9-5, comment on the oxygen balance of nitroglycerin. 

When coronary vasospasm occurs, the balance between oxygen supply and demand can be restored by relieving the spasm, thereby restoring normal coronary blood flow. Acute vasospasm has been successfully aborted through the use of nitroglycerin. In contrast, calcium entry blockers and long-acting nitrates have proved effective in the chronic therapy of coronary vasospasm. 

When the explosive liquid nitroglycerin, C3H5N3O9, decomposes, it forms carbon dioxide gas, nitrogen gas, water vapor, and oxygen gas. Write a complete, balanced equation for this reaction. 

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