Cr(VI) Formation via Oxyhalide-Induced Oxidative Dissolution of Chromium Oxide/Hydroxide in Aqueous and Frozen Solution

2020 ◽  
Vol 54 (22) ◽  
pp. 14413-14421
Author(s):  
Dae Wi Min ◽  
Kitae Kim ◽  
Bomi Kim ◽  
Giehyeon Lee ◽  
Wonyong Choi
Keyword(s):  
Chromium Oxide ◽  
Oxidative Dissolution ◽  
Frozen Solution ◽  
Oxide Hydroxide

Reactivity of chromium oxide in aqueous solutions. 1. Oxidative dissolution

1991 ◽  
Vol 3 (6) ◽  
pp. 1101-1106 ◽  
Author(s):  
Graciela B. Reartes ◽  
Pedro J. Morando ◽  
Miguel A. Blesa ◽  
Patrick B. Hewlett ◽  
Egon Matijevic
Keyword(s):  
Aqueous Solutions ◽  
Chromium Oxide ◽  
Oxidative Dissolution

ChemInform Abstract: THE MAGNETIC STRUCTURE OF β-CHROMIUM OXIDE HYDROXIDE-D

1977 ◽  
Vol 8 (18) ◽  
pp. no-no
Author(s):  
A. N. CHRISTENSEN ◽  
P. HANSEN
Keyword(s):  
Magnetic Structure ◽  
Chromium Oxide ◽  
Oxide Hydroxide

Thermal decomposition of chromium oxide hydroxide

1986 ◽  
Vol 112 (1) ◽  
pp. 252-260 ◽  
Author(s):  
Shigeharu Kittaka ◽  
Tomoyuki Tahara
Keyword(s):  
Thermal Decomposition ◽  
Chromium Oxide ◽  
Oxide Hydroxide

Thermal decomposition of chromium oxide hydroxide

1985 ◽  
Vol 58 (2) ◽  
pp. 187-193 ◽  
Author(s):  
Shigeharu Kittaka ◽  
Tohru Morooka ◽  
Kohji Kitayama ◽  
Tetsuo Morimoto
Keyword(s):  
Thermal Decomposition ◽  
Chromium Oxide ◽  
Oxide Hydroxide

scholarly journals An IR Study of a Chromium Oxide Hydroxide of K2Cr3X9 Stoichiometry.

1969 ◽  
Vol 23 ◽  
pp. 3262-3263
Author(s):  
Stig Friberg ◽  
Ola Jonsson ◽  
Karl-Axel Wilhelmi ◽  
George W. Francis ◽  
Gunnar Ståhl ◽  
...  
Keyword(s):  
Chromium Oxide ◽  
Oxide Hydroxide ◽  
Ir Study

Mechanism of oxalate ion adsorption on chromium oxide-hydroxide from pH dependence and time evolution of ATR-IR spectra

1999 ◽  
Vol 311 (3-4) ◽  
pp. 179-184 ◽  
Author(s):  
Jens Degenhardt ◽  
A.James McQuillan
Keyword(s):  
Ir Spectra ◽  
Time Evolution ◽  
Chromium Oxide ◽  
Ph Dependence ◽  
Ion Adsorption ◽  
Oxide Hydroxide ◽  
Oxalate Ion

The spalling of chromium oxide on an FeCr alloy

1966 ◽  
Vol 6 (11-12) ◽  
pp. 549-550 ◽  
Author(s):  
V HOWES
Keyword(s):  
Chromium Oxide ◽  
Fecr Alloy

Chemical deposition of hard composite coatings Ni–Cu–P–Cr2O3

2020 ◽  
pp. 179-181
Author(s):  
A.A. Abrashov A.A. ◽  
E.G. Vinokurov ◽  
M.A. Egupova ◽  
V.D. Skopintsev
Keyword(s):  
Chromium Oxide ◽  
Alkaline Solution ◽  
Composite Coatings ◽  
Chemical Deposition ◽  
Alkaline Solutions ◽  
Functional Surface ◽  
Heat Treated ◽  
Weakly Acid Solution ◽  
Coating Composition ◽  
Weakly Acidic Solution

The technological (deposition rate, coating composition) and functional (surface roughness, microhardness) characteristics of chemical composite coatings Ni—Cu—P—Cr2O3 obtained from weakly acidic and slightly alkaline solutions are compared. It is shown that coatings deposited from slightly alkaline solution contain slightly less phosphorus and chromium oxide than coatings deposited from weakly acid solution (2...3 % wt. phosphorus and up to 3.4 % wt. chromium oxide), formed at higher rate (24...25 microns per 1 hour of deposition at temperature of 80 °C), are characte rized by lower roughness and increased microhardness. The Vickers microhardness at 0.05 N load of composite coatings obtained from slightly alkaline solution and heat-treated at 400 °C for 1 hour is 13.5...15.2 GPa, which is higher than values for coatings deposited made of weakly acidic solution. The maximum microhardness of coatings is achieved at concentration 20 g/l of Cr2O3 particles. The technology of chemical deposition of Ni—Cu—P—Cr2O3 coatings formed in slightly alkaline solution is promising for obtaining of materials with increased hardness and wear resistance.

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