why kbr is used for pellet preparation in ir spectroscopy,
give the reasons? why kbr shows zero dipole moment?
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Answer / falguni patel
Dipole moment change means change in magnitude of +ve and -ve charge between two bonded atoms. To alter the dipol moment stretching or bending vibration is necessary. There is no these types of vibration is found.
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Answer / ramesh yadav
In IR spectroscopy for the preparation of pellet we use KBR
Because kBR has no absorbance in IR region
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Answer / b srinivasu
Kbr and sodium chloride cells are alkyl halides so its donot react and do not exhibit any absorbance spectrum
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Answer / mahesh
in IR kbr shows 100% trasmisson.so we prepare pallet with sample than it shows only spectrum of sample.also kbr is inactive in IR.
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Answer / ajeet pratap singh
KBr is IR inactive in nature so it use in pellet preparation.
KCl also can be use.
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