(UTC) 

 ==2007== 
 What kind of shelf life does sarin have? I've heard that it has a usuable shelf life of only two months, in the context of arguments that even if Iraq had sarin stockpiles in the past, they would be useless now. PST 

 ::Hi. Highly pure (rectified, without traces of moisture, HF and so on) GB, if stored below 50°C, in teflon-lined shells, has a typical shelf life of up to 5 years, so was considered stable enough for stockpile-shell-filling. If combined with stabilizers (pyridine, triisopropylamine, chlorobenzene), its stability is even higher, so that stabilised-GB-filled shells were considered deployable up to 10 years, if properly stored (i.e., cool, in first place). However, binary GB is a far better (technically speaking) solution for stability and deployability of GB. 23:40, 28 October 2007