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Ultraviolet Absorptiometric Determination of Boron in Aqueous Medium Using Chromotropic Acid

✍ Scribed by Kuemmel, D. F.; Mellon, M. G.


Book ID
120015400
Publisher
American Chemical Society
Year
1957
Tongue
English
Weight
613 KB
Volume
29
Category
Article
ISSN
0003-2700

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A new ultraviolet spectrophotometric method for hexavalent chromium in water based on the oxidation of chromotropic acid by Cr(VI) in 0.12 mol/liter HCl medium is described. The molar absorptivity is 1.76 1 10 4 litersrmol 01 cm 01 . The detection limit is 0.024 mg ml 01 Cr. This sensitive and very