Remundo wrote: wrote:
To neutralize all these beautiful people, you have to know organic chemistry and have the necessary products ...
Should this still be possible ... reduce their effect surely but neutralize completely, it is not at all certain that this is possible. The state can be very inventive to avoid being eaten up ...
Go try to make coffee and milk again with a café au lait.
Chemistry has its limits ...
Well, it's not a question of separating the products ... but of attacking them chemically, to break them or change their function / reactivity
Finally, it seems that tracer products are not that difficult to "neutralize", in any case to denature ... On the other hand, some will remain in their derived form in the fuel.
After having found the precise structure of the tracers, I gathered my old knowledge of organic chemistry ...
SY124 (also known as Sudan 455) is a benzamine III, comprising an acetal (OCO)
This acetal can be "cut" from the benzamine part in an acidic medium. There remains a strange acid (comprising the phenylamine) giving various colors according to the pH. It is really the toughest tracer because the amine III is not very reactive.
Furfural is a furan-methanal
it too can be attacked in an acid medium and by supplying a nucleophile Nu-E (for example an alcohol R-OH), it gives an acetal with chemical properties totally different from furfural.
Finally diphenylamine
is an amine II which can be denatured by the action of nitrous acid HNO2 (nitrosation): this compound forms an insoluble yellow phase (in principle ...) which can therefore be removed from the fuel. Among the 3 tracers, this one seems to me the weakest.
You don't need a lot of products (quantities) because there are only a few g or mg of these tracers per liter of FOD ...
A priori, I will try to add a little alcohol + nitrous acid.
With a ladle, for 1L of FOD, a few mL of ethanol + a few mL of pure HNO2 ... In my opinion,
1) we should nitrose the diphenylamine (phase to be extracted)
2) split the SY2 in two (or more). It is possible that NO124 groups are substituted on the phenyls ... the red should disappear.
3) furfural will not like: acidity and alcohol should acetalize it
it would be worth trying "for the science". After the FOD obtained is not terrible because of traces of acidity ... After combustion, the HNO2 will be lost in NOx or H2O
PS: finally, there is the action of UV on all carbon cycles (cracking of cycles), but I have no idea of the levels of UV radiation necessary, the fuel being rather opaque, UV risks being degraded in heat before properly attacking the phenyl or benzene cycles ...