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Xenon- the light at the end of the tunnel

Xenon (Xe, Element 54) Xenon, from the Greek for ‘stranger’ is a colourless, odourless group 18 noble gas. Discovered in 1898 in London by William Ramsay, xenon is produced commercially by the fractional distillation of liquid air and is isolated as a by-product of the cryogenic production of oxygen and nitrogen. The concentration in the

The Balz-Schiemann Reaction

Aryl- and heteroaryl- diazonium tetrafluoroborate salts, prepared by diazotization of an aniline in the presence of HBF4, are unique in that in many cases they are sufficiently stable to isolate. Thermal decomposition of these salts at elevated temperatures results in fluoro-dediazoniation and formation of the corresponding aryl or heteroaryl fluoride- the Balz-Schiemann reaction.1a,bRadiolabelled 18F compounds