270. The absorption spectrum of cobalt chloride in presence of magnesium chloride in aqueous solution

1936 ◽  
pp. 1268 ◽  
Author(s):  
O. Rhys Howell ◽  
Albert Jackson
Keyword(s):  
Aqueous Solution ◽  
Absorption Spectrum ◽  
Magnesium Chloride ◽  
Cobalt Chloride

scholarly journals The change in the absorption spectrum of cobalt chloride in aqueous hydrochloric acid solution with change of temperature

1936 ◽  
Vol 155 (884) ◽  
pp. 33-41 ◽  
Author(s):  
Owen Rhys Howell ◽  
Albert Jackson ◽  
Eric Keightley Rideal
Keyword(s):  
Aqueous Solution ◽  
Absorption Spectrum ◽  
Hydrochloric Acid ◽  
Acid Solution ◽  
Constant Temperature ◽  
Acid Concentration ◽  
Hydrochloric Acid Solution ◽  
Cobalt Chloride ◽  
Cobalt Atom ◽  
Aqueous Hydrochloric Acid Solution

The change in the absorption spectrum of cobalt chloride in aqueous solution with increasing concentration of hydrochloric acid at constant temperature (20° C) has already been investigated.* It was shown that with increasing concentration of acid up to 5N HCl, no blue constituent was formed. The cobalt atom, therefore, retains its six grouping over this range. The effect of increasing acid concentration is to replace two molecules of water by two atoms of chlorine: [Co(H 2 O) 6 ] → [Co(H 2 O) 4 Cl 2 ].

Crayfish shell biochar modified with magnesium chloride and its effect on lead removal in aqueous solution

2020 ◽  
Vol 27 (9) ◽  
pp. 9582-9588 ◽  
Author(s):  
Jiaqi Zhang ◽  
Xiaolan Hu ◽  
Jinpeng Yan ◽  
Li Long ◽  
Yingwen Xue
Keyword(s):  
Aqueous Solution ◽  
Magnesium Chloride ◽  
Lead Removal

Absorption Spectrum and Chemical Reactions of Colloidal Cadmium in Aqueous Solution

1992 ◽  
Vol 272 ◽  
Author(s):  
M. Gutiérrez ◽  
A. Henglein
Keyword(s):  
Aqueous Solution ◽  
Nitrous Oxide ◽  
Absorption Spectrum ◽  
Carbon Tetrachloride ◽  
Chemical Reactions ◽  
Redox Reactions ◽  
Methyl Viologen ◽  
Narrow Band ◽  
Optical Data

ABSTRACTA radiolysis method is described to prepare isolated cadmium particles in aqueous solution. The spectrum of these particles (narrow band at 260nm) agrees with the spectrum calculated from the optical data of cadmium. Clusters of particles absorb at longer wavelengths. Redox reactions of the particles with methyl viologen, nitrous oxide and carbon tetrachloride were also investigated. It is shown that the absorption spectrum of the particles changes during these reactions as de-clustering takes place.

Kinetics for the Reaction between Potassium Ferricyanide and Cobalt Chloride in Aqueous Solution and Microemulsion

2015 ◽  
Vol 36 (12) ◽  
pp. 1756-1761 ◽  
Author(s):  
Zhiyun Chen ◽  
Zilin Yang ◽  
Xianlong Du ◽  
Jihua Zhao ◽  
Weiguo Shen
Keyword(s):  
Aqueous Solution ◽  
Cobalt Chloride ◽  
Potassium Ferricyanide

Atomic absorption background of Ba in EXAFS analysis of BaFe12O19nanoparticles

2011 ◽  
Vol 18 (4) ◽  
pp. 557-563 ◽  
Author(s):  
Jana Padežnik Gomilšek ◽  
Alojz Kodre ◽  
Iztok Arčon ◽  
Simone de Panfilis ◽  
Darko Makovec
Keyword(s):  
Aqueous Solution ◽  
Absorption Spectrum ◽  
Atomic Absorption ◽  
Energy Region ◽  
Structural Parameters ◽  
Simple Analytical Model ◽  
Absorption Signal ◽  
X Ray ◽  
Exafs Analysis ◽  
Atomic Absorption Spectra

The approximate barium X-ray atomic absorption in the energy region ofL-edges is reconstructed from the absorption spectrum of an aqueous solution of BaCl2. The result is corroborated by comparison with pure atomic absorption spectra of neighbour elements Xe and Cs. The application of the atomic absorption signal as a proper EXAFS background is demonstrated and discussed in the analysis of Ba hexaferrite nanoparticles with a very weak structural signal. The essential gain is found in the decrease of uncertainty intervals of structural parameters and their correlations. A simple analytical model of the absorption background for the practical EXAFS analysis is demonstrated.

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