I guess I missed my mark with the last post. Ahh, well.
Originally Posted by Dayton3
If I am not mistaken, many chemical weapons combine precursors once activated to prevent the breakdown of the active chemical. F'rintstints, a chemical munitions may not actually contain nerve gas, but rather chemicals which when mixed together will produce nerve gas.
Here is information which you may find interesting
Chemical Weapons Programs - Iraq Special Weapons Facilities
Chemical Weapons Programs: History
Production of the nerve gases tabun (GA) and sarin (GB) started in 1984 and the method of production changed over time in order to resolve stabilization problems. Iraq's latest declarations have reduced the stated amount of tabun produced from 250 tons to 210 tons and of sarin produced from 812 tons to 790 tons.
The tabun produced was poor, being of a maximum purity of 60 per cent. As a result, the agent did not store well and could only be stored for a limited period.
The sarin produced was also of poor quality (maximum purity of 60 per cent when solvent is taken into account) and so too could only be stored for short periods. In order to overcome this problem, Iraq resorted to a binary approach to weaponization: the precursor chemicals for sarin (DF 2/ and the alcohols cyclohexanol and isopropanol) were stored separately for mixing in the munitions immediately prior to use to produce a mixture of two G-series nerve agents, GB and GF. Given that the locally manufactured DF had a purity of more than 95 per cent and the alcohols were imported and of 100 per cent purity, this process could be expected to yield relatively pure sarin.
Over the period from June 1992 to June 1994, the Commission's Chemical Destruction Group destroyed 30 tons of tabun, 70 tons of sarin and 600 tons of mustard agent, stored in bulk and in munitions.