Wow…… what is happening in this country. Were they deliberately poisoned, did they come across some reminant from before or are they involed somehow.
Any chemist know how easy it is to make?
They are all organophosphorus compounds that at first glance look terrifyingly simple to make, just in terms of the reagents and rudimentary transformations involved. Like a one-armed man with access to a bathtub could be brewing up kilos of the stuff. This is unlikely to occur, fortunately, as the virulent toxicity of the final product (plus stability issues in a lot of cases) makes it very difficult to purify and handle, meaning chemistry expertise and equipment is needed. So it’s in the realm of the state, rather than terrorist, production of chemical weapons [the sarin attack in Japan 20 years ago I guess tests this statement, but that was a singular example of craziness – religious cult leader built a 30 million dollar lab to produce the substance].
The novichoks AFAIK are mixtures of two chemicals (binaries) to solve the problem of handling the nerve agent. One part will be an organophosphorus precursor of much reduced toxicity, that could be claimed to have legitimate use (e.g. as a pesticide) and the other part will be something common and innocuous like an amine or a nitrile, mix them together and you get the weapon on demand.
It’s depressing stuff, tbh, and I hope the Amesbury couple pull through. One for jivehoneyjive – At least they didn’t have to send the samples far for analysis – Porton Down (where VX and many more nerve agents were invented) is only 3 miles away…