The decomposition of oxalic acid is a first order reaction and proceeds at temperatures above 80掳C; the activation energy of the reaction is 18.6 kcal/mol. This decomposition method is applicable to the dissolution of an oxalate precipitate....
Photocatalytic hydrogen evolution using oxalic acid as electron donor has been investigated over Pt–TiO 2 prepared by photodeposition. The reaction kinetics is consistent with the Langmuir model. The effects of pH, amount of deposited Pt and additives of inorganic anions on the rate of the reaction...
quantitative analysissensitivityThe uranyl-sensitised photodecomposition of oxalic acid is followed by the use of a modified Warburg constant-volume micro-manometric apparatus. The minimum concentration of uranyl ion determined was 100 μ M.doi:10.1016/0039-9140(61)80013-1A.E. Taylor...
The photo-decomposition rate of neodymium oxalate precipitates was found to be 0.0034 M/h at the condition of 0.5 M HNO 3 . 展开 关键词: Oxalic Acid Photo-Decomposition Nitric Acid Oxalate Precipitate Photochemical Reaction DOI: 10.1007/BF02707124 被引量: 3 ...
Under September noon sunlight irradiation (0.65m Einstein m−2s−1), 1 μM dissolved iron(III) has a potential to catalyse the degradation of oxalic acid at a rate of 10 ± 1 nM s−1; of glyoxalic acid, 7 ± 1 nM s−1; and of pyruvic acid, 8 ± 1 nM s−1. The ...
Heterogeneous photocatalytic decomposition of perfluoroocatanoic acid (PFOA) by TiO 2 under 254 nm UV light was investigated. Adding oxalic acid as a hole-scavenger significantly accelerated PFOA decomposition under nitrogen atmosphere. Fluoride ion, formic acid and six shorter-chain perfluorinated carboxy...
Today, highly-pure rare-earth metal (REM) oxides are obtained by oxidation of oxalates from hydrochloric or nitric acid solutions with oxalic acid solutions and then subjected to thermal decomposition. It is well known that the obtained oxalates always contain 6, 10, and more water molecules. ...
The irradiation arrays had not statistical differences in the TA decomposition or oxalic acid formation. These results suggest that the construction of central bodies inside the reactor could be not necessary for photocatalytic processes.doi:10.1080/00986445.2019.1581617Iliana Fuentes...
Two different polymorphs of ferrous oxalate dihydrate were synthesized by precipitation of ferrous ions with oxalic acid: α-Fe(C 2 O 4 )·2H 2 O with a monoclinic unit cell is obtained after precipitation and ageing at 90°C, whereas the orthorhombic β-type is formed after precipitation at...
Coproduction of 1,4:3,6-Dianhydro-伪-d-glucopyranose, Furfural, and Formic Acid through Oxalic Acid-Assisted Staged Fast Pyrolysis of Cellulose Pyrolysis is a promising thermochemical conversion technology, which can convert biomass and cellulose into value-added products. Herein, a new approach of....