Facile synthesis of CuO micro-sheets over Cu foil in oxalic acid solution and their sensing properties towards n-butanol

2016 ◽  
Vol 4 (5) ◽  
pp. 985-990 ◽  
Author(s):  
Chengjun Dong ◽  
Lihong Wang ◽  
Gang Chen ◽  
Xuechun Xiao ◽  
Igor Djerdj ◽  
...  
Keyword(s):  
Oxalic Acid ◽  
Acid Solution ◽  
Oxalic Acid Solution ◽  
Facile Synthesis ◽  
Sensing Properties ◽  
Annealing Procedure ◽  
Cu Foil

Here, CuO micro-sheets were successfully synthesized from Cu foil using the annealing procedure.

Bacteriological research

1930 ◽  
Vol 26 (3) ◽  
pp. 327-327
Author(s):  
A. A. Ozereliev
Keyword(s):  
Oxalic Acid ◽  
Acid Solution ◽  
Oxalic Acid Solution ◽  
Alcoholic Solution ◽  
Operating Field

Abstracts. Surgery. A. A. Ozereliev (Zentralbl. F. Chir. 1930, No. 3) based on a comparison It is recommended to use a 5% alcoholic solution of tannin for disinfection of the operating field, since the latter, with the same disinfecting force with t. jodi does not irritate the skin. To eliminate stains, it is recommended to wash them off after surgery with 1% oxalic acid solution.

scholarly journals Electrochemical synthesis and corrosion protection of poly(3-aminophenylboronic acid-co-pyrrole) on mild steel

RSC Advances ◽  
2020 ◽  
Vol 10 (63) ◽  
pp. 38548-38560
Author(s):  
Hakan Sarıarslan ◽  
Erhan Karaca ◽  
Mutlu Şahin ◽  
Nuran Özçiçek Pekmez
Keyword(s):  
Oxalic Acid ◽  
Acid Solution ◽  
Mild Steel ◽  
Corrosion Protection ◽  
Electrochemical Synthesis ◽  
Oxalic Acid Solution ◽  
Aminophenylboronic Acid

Synthesis of poly(3-aminophenylboronic acid-co-pyrrole) (p(APBA-co-Py)) is carried out potentiodynamically on a pre-passivated mild steel (MS) surface in an oxalic acid solution containing 3-aminophenylboronic acid (APBA) and pyrrole (Py) monomers.

scholarly journals High variability of the heterogeneous ice nucleation potential of oxalic acid dihydrate and sodium oxalate

2010 ◽  
Vol 10 (16) ◽  
pp. 7617-7641 ◽  
Author(s):  
R. Wagner ◽  
O. Möhler ◽  
H. Saathoff ◽  
M. Schnaiter ◽  
T. Leisner
Keyword(s):  
Oxalic Acid ◽  
Acid Solution ◽  
Active Sites ◽  
Oxalic Acid Solution ◽  
Ice Nucleation ◽  
Sodium Oxalate ◽  
Supersaturated Solution ◽  
Oxalic Acid Dihydrate ◽  
Condensation Mode ◽  
Heterogeneous Ice Nucleation

Abstract. The heterogeneous ice nucleation potential of airborne oxalic acid dihydrate and sodium oxalate particles in the deposition and condensation mode has been investigated by controlled expansion cooling cycles in the AIDA aerosol and cloud chamber of the Karlsruhe Institute of Technology at temperatures between 244 and 228 K. Previous laboratory studies have highlighted the particular role of oxalic acid dihydrate as the only species amongst a variety of other investigated dicarboxylic acids to be capable of acting as a heterogeneous ice nucleus in both the deposition and immersion mode. We could confirm a high deposition mode ice activity for 0.03 to 0.8 μm sized oxalic acid dihydrate particles that were either formed by nucleation from a gaseous oxalic acid/air mixture or by rapid crystallisation of highly supersaturated aqueous oxalic acid solution droplets. The critical saturation ratio with respect to ice required for deposition nucleation was found to be less than 1.1 and the size-dependent ice-active fraction of the aerosol population was in the range from 0.1 to 22%. In contrast, oxalic acid dihydrate particles that had crystallised from less supersaturated solution droplets and had been allowed to slowly grow in a supersaturated environment from still unfrozen oxalic acid solution droplets over a time period of several hours were found to be much poorer heterogeneous ice nuclei. We speculate that under these conditions a crystal surface structure with less-active sites for the initiation of ice nucleation was generated. Such particles partially proved to be almost ice-inactive in both the deposition and condensation mode. At times, the heterogeneous ice nucleation ability of oxalic acid dihydrate significantly changed when the particles had been processed in preceding cloud droplet activation steps. Such behaviour was also observed for the second investigated species, namely sodium oxalate. Our experiments address the atmospheric scenario that coating layers of oxalic acid or its salts may be formed by physical and chemical processing on pre-existing particulates such as mineral dust and soot. Given the broad diversity of the observed heterogeneous ice nucleability of the oxalate species, it is not straightforward to predict whether an oxalate coating layer will improve or reduce the ice nucleation ability of the seed aerosol particles.

scholarly journals A Novel Method for Fabricating Double Layers Porous Anodic Alumina in Phosphoric/Oxalic Acid Solution and Oxalic Acid Solution

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Yanfang Xu ◽  
Xiaojiu Li ◽  
Hao Liu ◽  
Jie Xu
Keyword(s):  
Oxalic Acid ◽  
Acid Solution ◽  
Oxalic Acid Solution ◽  
Anodic Alumina ◽  
Porous Anodic Alumina ◽  
Double Layers ◽  
Pore Density ◽  
Interpore Distance ◽  
Small Pore ◽  
Novel Method

A novel method for fabricating ordered double layers porous anodic alumina (DL-PAA) with controllable nanopore size was presented. Highly ordered large pore layer with interpore distance of 480 nm was fabricated in phosphoric acid solution with oxalic acid addition at the potential of 195 V and the small pore layer was fabricated in oxalic acid solution at the potential from 60 to 100 V. Experimental results show that the thickness of large pore layer is linearly correlative with anodizing time, and pore diameter is linearly correlative with pore widening time. When the anodizing potential in oxalic acid solution was adjusted from 60 to 100 V, the small pore layers with continuously tunable interpore distance from 142 to 241 nm and pore density from1.94×109to4.89×109 cm−2were obtained. And the interpore distance and the pore density of small pore layers are closely correlative with the anodizing potential. The fabricated DL-PAA templates can be widely utilized for fabrication of ordered nanomaterials, such as superhydrophobic or gecko-inspired adhesive materials and metal or semiconductor nanowires.

Dissolution Kinetics Potential of a Biotite-Rich Kaolinite Ore for Industrial Applications by Oxalic Acid Solution

2019 ◽  
Vol 36 (6) ◽  
pp. 1091-1099
Author(s):  
Alafara A. Baba ◽  
Mustapha A. Raji ◽  
Aishat Y. Abdulkareem ◽  
Malay K. Ghosh ◽  
Rafiu B. Bale ◽  
...  
Keyword(s):  
Oxalic Acid ◽  
Acid Solution ◽  
Dissolution Kinetics ◽  
Oxalic Acid Solution ◽  
Industrial Applications
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