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Q: Why is nujol used to prepare samples for infra red spectroscopy?
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Why in some cases nujol technique is used In IR spectroscopy and in some other cases rest of techniques Is there any specific reason which technique to use and when?

you use nujol when you have a solid and combining the solid with the nujol forms a toothpaste consistency which you can then perform a neat IR on.


How much is a nujol old vintage bottle worth?

18$


Why Raman spectroscopy is prefered than other techniques?

Raman is used a lot as it is not sensitive to atmospheric water and CO2 usually won't stand out on the spectra. Its also useful in most settings as there is no sample prep needed, which is quite a difference to somthing like IR spectra which need nujol mulls or KBr plates. In comparison to IR the bands of the spectra are usually smaller and sampling is non-destructive. In an industrial setting raman can be used with fiber optic cables to remotely monitor reactions and product formation.


Why is nujol used?

to provide a protective layer or coating for the sample if the sample is a reactive sample. forming a protective layer or coating would prevent decomposition of the sample during the IR reading process.