A Spectrophotometric Investigation of the Cerium(IV)-Chromium(VI) Complex Ion Equilibria in Perchloric Acid Solution1,2,3a

1954 ◽  
Vol 76 (8) ◽  
pp. 2132-2135 ◽  
Author(s):  
James Ying-peh Tong ◽  
Edward L. King
Keyword(s):  
Perchloric Acid ◽  
Spectrophotometric Investigation ◽  
Chromium Vi ◽  
Complex Ion

scholarly journals Kinetic Evidence of a Common Mechanism in the Oxidation by Chromium(vi) Complexes: Oxidation of Benzyl Alcohol

2000 ◽  
Vol 2000 (3) ◽  
pp. 114-115 ◽  
Author(s):  
Chockalingam Karunakaran ◽  
Sadasivam Suresh
Keyword(s):  
Acetic Acid ◽  
Benzyl Alcohol ◽  
Perchloric Acid ◽  
Mineral Acid ◽  
Common Mechanism ◽  
Aqueous Acetic Acid ◽  
First Order ◽  
Chromium Vi ◽  
Oxidation Of Benzyl Alcohol

The oxidation of benzyl alcohol by dichromate and seven chromium(VI) complexes in aqueous acetic acid in the presence of perchloric acid is first order each in the oxidants, the alcohol and the mineral acid. The oxidation conforms to the isokinetic and Exner relationships and follows a common mechanism.

Kinetics and mechanism of the oxidation of some diols by chromium (VI) in perchloric acid medium

Tetrahedron ◽  
1986 ◽  
Vol 42 (20) ◽  
pp. 5707-5714 ◽  
Author(s):  
Kalyan Kali Sen Gupta ◽  
Tapashi Samanta ◽  
Samarendra Nath Basu
Keyword(s):  
Acid Medium ◽  
Perchloric Acid ◽  
Kinetics And Mechanism ◽  
Chromium Vi

The Aqueous Chemistry of Chromium(III) above 100 °C: Hydrothermal Synthesis of Chromium Spinels

1971 ◽  
Vol 49 (14) ◽  
pp. 2433-2441 ◽  
Author(s):  
T. W. Swaddle ◽  
J. H. Lipton ◽  
G. Guastalla ◽  
P. Bayliss
Keyword(s):  
Stainless Steel ◽  
Hydrothermal Synthesis ◽  
Molecular Oxygen ◽  
Supercritical Water ◽  
Perchloric Acid ◽  
Aqueous Chemistry ◽  
Hydrothermal Deposition ◽  
316 Stainless Steel ◽  
Chromium Vi ◽  
Hydrothermal Origin

The hydrothermal deposition of CrO(OH) from aqueous chromium(III) chloride, nitrate, and perchlorate, and of Cr3(SO4)2(OH)5•H2O and Cr(OH)SO4•2H2O(?) from aqueous chromium(III) sulfate, has been investigated. Aqueous chromium(III) is oxidized to chromium(VI) by 0.4 M perchloric acid above 225 °C, and by molecular oxygen above 250 °C. Aqueous chromium(III) can react at 300 °C with iron or steel, cobalt, and copper to produce FeCr2O4, CoCr2O4, and Cu2Cr2O4, respectively. CrO(OH) reacts with type 316 stainless steel at 440 °C in supercritical water of density 0.7 g cm−3 to yield (Fe,Ni)-Cr2O4, which is the "cubic Cr2O3" of Laubengayer and McCune. The spinels MCr2O4 (M = Mg, Mn, Fe, Co) can be made hydrothermally at ca. 300 °C from Cr(OH)3 and M(OH)2. This information is relevant to corrosion phenomena, and the possible hydrothermal origin of chromite deposits in serpentinized rocks.

Kinetics of oxidation of methanol and mono-deutero-methanol by chromium(VI) in perchloric acid medium

Tetrahedron ◽  
1985 ◽  
Vol 41 (1) ◽  
pp. 205-208 ◽  
Author(s):  
Kalyan Kali Sengupta ◽  
Tapashi Samanta ◽  
Samarendra Nath Basu
Keyword(s):  
Acid Medium ◽  
Perchloric Acid ◽  
Kinetics Of Oxidation ◽  
Chromium Vi ◽  
Oxidation Of Methanol ◽  
Kinetics Of
Sign in / Sign up

Export Citation Format

Share Document