Topic
Oxalic acid
About: Oxalic acid is a research topic. Over the lifetime, 11584 publications have been published within this topic receiving 173263 citations. The topic is also known as: ethanedioic acid & H2ox.
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TL;DR: In this paper, photo-Fenton (PF) reaction was used to degrade oxalic acid (ox) at relatively high concentrations (0.032 m) and the results indicated that, at a fixed iron concentration, H 2 O 2 increased the initial HP reaction rate and reduced the TOC 95.
59 citations
TL;DR: In this paper, the interaction of uranyl ion and phthalic, maleic, oxalic, malonic, succinic and propane tricarboxylic acids in aqueous solutions has been investigated by means of potentiometric measurement of hydrogen ion concentration at 25° and ionic strength 1·00 (KNO3).
59 citations
TL;DR: Results suggest that A. niger F22 can be used as a microbial nematicide for the control of root-knot nematode disease.
Abstract: Restricted usage of chemical nematicides has led to development of environmentally safe alternatives. A culture filtrate of Aspergillus niger F22 was highly active against Meloidogyne incognita with marked mortality of second-stage juveniles (J2s) and inhibition of egg hatching. The nematicidal component was identified as oxalic acid by organic acid analysis and gas chromatography-mass spectroscopy (GC-MS). Exposure to 2 mmol/L oxalic acid resulted in 100% juvenile mortality at 1 day after treatment and suppressed egg hatching by 95.6% at 7 days after treatment. Oxalic acid showed similar nematicidal activity against M. hapla, but was not highly toxic to Bursaphelenchus xylophilus. The fungus was incubated on solid medium and dried culture was used for preparation of a wettable powder-type (WP) formulation as an active ingredient. Two WP formulations, F22-WP10 (ai 10%) and oxalic acid-WP8 (ai 8%), were prepared using F22 solid culture and oxalic acid. In a field naturally infested with M. incognita, application of a mixture of F22-WP10 + oxalic acid-WP8 at 1,000- and 500-fold dilutions significantly reduced gall formation on the roots of watermelon plants by 58.8 and 70.7%, respectively, compared to the non-treated control. The disease control efficacy of the mixture of F22-WP10 + oxalic acid-WP8 was significantly higher than that of a chemical nematicide, Sunchungtan (ai 30% fosthiazate). These results suggest that A. niger F22 can be used as a microbial nematicide for the control of root-knot nematode disease.
59 citations
TL;DR: In this paper, a thermal decomposition of a mixture of H 2 IrCl 6 ·6H 2 O dissolved in hydrochloric acid and TaCl 5 dissolved in alcohol was applied on Ti substrates of IrO 2 -Ta 2 O 5 coated anodes.
59 citations
TL;DR: The result indicated that the enhanced level of pyruvate dehydrogenase (PDH) activity caused by oxalic acid was important for glutamic acid synthesized de novo from glucose.
59 citations