why potassium dicromate use in calibration of UV VIIBLE
SPECTROCOPY ?
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Answer / sigilipalliramu@gmail.com
potassium dicromate having 570-620nm and uvhigest wavelength is600 so we can use that
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Answer / vikram
k2cr2o7 in H2So4 can give more maximum in the UV-VIS region,(at 235,257,313,350,430nm)so that we can check the whole UV-VIS region with a single run.
k2cr2o7 itself is stable and available in high purity.In dilute perchloric acid solution,it has a linear response with temperature.
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Organic Chemistry 
