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The separation and photometric determination of chromium and vanadium

โœ Scribed by Sidney A. Katz; Wallace M. McNabb; J.Fred Hazel


Publisher
Elsevier Science
Year
1961
Tongue
English
Weight
246 KB
Volume
25
Category
Article
ISSN
0003-2670

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The spectrophotometric determination of
โœ M. Ariel; J. Manka ๐Ÿ“‚ Article ๐Ÿ“… 1961 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 585 KB

## REAGENTSAND SOLUTIONS (I) Ortho-dianisidine dihydrochloride (3,3'-dimethoxybenzidine). This is a crystalline solid, soluble in water and acids. Its reduced form is colorless, while its oxidized form is red in strongly acid solutions and green in solutions whose pH is higher than 2.1. The formal