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Colorimetric Determination of Cobalt Using Nitroso-R Salt

✍ Scribed by Willard, H. H.; Kaufman, Samuel.

Book ID: 124072133
Publisher: American Chemical Society
Year: 1947
Tongue: English
Weight: 132 KB
Volume: 19
Category: Article
ISSN: 0003-2700
DOI: 10.1021/ac60007a030

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The chelate is quantitatively formed only in the pH range 6.5-7.5. Despite the large stability constant, a large excess of reagent is required to suppress interferences. The most suitable wavelength for the photometric measurement is 500 nm, where the molar absorptivity is 1.607 x 10(4) 1.mole(-1).

The rapid photometric determination of c

The rapid photometric determination of cobalt in steels using Nitroso-R-Salt

✍ Haywood, F. W. ;Wood, A. A. R. 📂 Article 📅 1943 🏛 Wiley (John Wiley & Sons) ⚖ 386 KB

The use of nitroso-R-salt ns n specific rcngcnt for tho determination of cobnlt in steels is dcscrihed. Full development of tho cdourd cobnlt complex is obtained whcn nll minernl wid iona am ncutralieed by mcane of sodium acctntc. Other interfering elcmcnts ocauning in stfels. whilo producing wmphxe