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Effect of reagent impurity on chromotropic acid method for determination of chloride

โœ Scribed by Afghan, Badar K.; Ryan, James F.

Book ID
126027869
Publisher
American Chemical Society
Year
1976
Tongue
English
Weight
500 KB
Volume
48
Category
Article
ISSN
0003-2700

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Chromotropic Acid as a Reagent for Ultra
Chromotropic Acid as a Reagent for Ultraviolet Spectrophotometric Determination of Hexavalent Chromium in Water
โœ Zhiqiang Zhao; Ruomei Gao; Jingtian Li; Suran Liu; Hui Liu ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 68 KB

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