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Potassium oxalate monohydrate

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Potassium oxalate monohydrate is a chemical compound with the formula K₂C₂O₄·H₂O. It is a white, crystalline solid that is soluble in water.

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Lab products found in correlation

Sodium chloride (nacl), by Merck Group (2 mentions) Sodium hydroxide (naoh), by Merck Group (2 mentions) Oxalic acid, by Merck Group (1 mentions) Catalase, by Merck Group (1 mentions) Direct q system, by Merck Group (1 mentions) 124 tcb, by Merck Group (1 mentions) Titanium oxysulfate, by Merck Group (1 mentions) Acetone, by Merck Group (1 mentions) Sodium bicarbonate, by Merck Group (1 mentions) Sodium carbonate, by Merck Group (1 mentions) Hydrogen peroxide, by Merck Group (1 mentions) Sulfuric acid, by Merck Group (1 mentions) Sodium acetate, by Merck Group (1 mentions) N hexane, by Merck Group (1 mentions) 1 10 phenanthroline, by Merck Group (1 mentions) Hplc grade water, by Thermo Fisher Scientific (1 mentions) Isooctane, by Merck Group (1 mentions) Ethyl chloroformate, by Merck Group (1 mentions) Homocystine, by Merck Group (1 mentions) 7 oxo dhea, by Steraloids (1 mentions)

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Potassium oxalate

5 protocols using potassium oxalate monohydrate

1

Ferrioxalate-Catalyzed Degradation of 124-TCB

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124-TCB (Sigma-Aldrich, Darmstadt, Germany, ≥99%) was used as the target pollutant. The ferrioxalate solution, the catalyst of the process, was prepared using potassium oxalate monohydrate (Sigma-Aldrich, 99.50%) and iron (III) sulphate hydrate (Sigma-Aldrich, 97%). Hydrogen peroxide (35 wt.%), titanium oxysulfate (used for the quantification of Hydrogen peroxide), sodium carbonate, sodium bicarbonate, sulfuric acid, oxalic acid, acetone (used for Ionic Chromatography analysis), 1,10-phenanthroline, sodium acetate (used in the measurement of iron in solution), n-hexane, tetrachloroethane, butyl cyclohexyl (used in COC determination by GC), NaOH (for pH adjustment), catalase, sodium bicarbonate, and sodium chloride were all purchased from Sigma-Aldrich. The bacteria Vibrio fischeri (Microtox® Acute Reagent, Azur Environmental, Carlsbad, CA, USA) was supplied by I.O. Analytical. All the stock solutions and their dilutions were prepared with high-purity water from a Millipore Direct-Q system (Millipore Corporation, Burlington, MA, USA) (resistivity >18 MΩ cm at 25 °C).
Conte L.O., Dominguez C.M., Checa-Fernandez A, & Santos A. (2022). Vis LED Photo-Fenton Degradation of 124-Trichlorobenzene at a Neutral pH Using Ferrioxalate as Catalyst. International Journal of Environmental Research and Public Health, 19(15), 9733.
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2

Preparation of Buffered Spin Trapping Solutions

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The following chemicals were purchased from Fisher Scientific (ACS Grade): potassium acetate, glycerol, citric acid, ethylenediaminetetraacetic acid (EDTA), and potassium phosphate. Potassium oxalate monohydrate and diethethylenetriamine-pentaacetic acid (DTPA) were purchased from Sigma-Aldrich. 5-tert-butoxycarbonyl 5-methyl-1-pyrroline N-oxide (BMPO) was obtained from Applied Bioanalytical Labs (Bradenton, FL). All solutions were prepared in HPLC grade water obtained from Fisher Scientific. Stock solutions of 1 M acetate or citrate buffer were used to buffer the solutions at pH4.0 at a final buffer concentration of 50 mM. Potassium oxalate stock solutions were prepared at 0.5 M and the pH was adjusted to match that of the pH of the buffering solution. A 2 M BMPO stock solution was also prepared, along with a 4 mM stock of DTPA.
Twahir U.T., Stedwell C.N., Lee C.T., Richards N.G., Polfer N.C, & Angerhofer A. (2014). Observation of Superoxide Production During Catalysis of Bacillus subtilis Oxalate Decarboxylase at pH4. Free radical biology & medicine, 80, 59-66.
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3

Steroid Quantification Methodology

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Cortisol, cortisone and dehydroepiandrosterone (DHEA) were purchased from Koch-Light Laboratories LTD (Colnbrook, Great Britain); 7α-hydroxy-DHEA, 7β-hydroxy-DHEA, 7-oxo-DHEA, 16α-hydroxy-DHEA and D3-DHEA were from Steraloids (Newport, USA). D4-Cortisol was from CDN isotopes (Ponte-Claire, Canada). 2-hydrazinopyridine, ammonium formate, methyl tert-butyl ether, trifluoroacetic acid, homocystine, dithiothreitol, pyridine, p-fluoro-DL-phenylalanine, ethyl chloroformate, isooctane, ethanol, chloroform, sodium chloride, hydrochloric acid and potassium oxalate monohydrate were from Sigma-Aldrich (St. Louis, USA). LC-MS grade methanol and water as well as diethyl ether were from Merck AG (Darmstadt, Germany). The physiological solution was from B-Braun (Melsungen AG, Germany).
Sosvorova L., Mohapl M., Hill M., Starka L., Bicikova M., Vitku J., Kanceva R., Bestak J, & Hampl R. (2015). Steroid hormones and homocysteine in the outcome of patients with normal pressure hydrocephalus. Physiological research, 64(Suppl 2).
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4

Fermentation of Fresh Cow Milk

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Fresh cow milk and red ginger obtained from the local market in Semarang, Indonesia. Chemicals used were L. bulgaricus and S. thermophilus fermentation starters (Merck, Germany), NaOH (97%, Merck, Germany), formaldehyde solution (37%, Merck, Germany), potassium oxalate monohydrate (99.9%, Merck, Germany) and phenolphthalein (Merck, Germany).
Widayat W., Satriadi H., Cahyono B., Girsang D.E., Prabandari N.D., & Dita A. (2020). The characterization of physicochemical, microbiological and sensorial red ginger yogurt during fermentation. Food Research, 4(5), 1753-1757.
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5

Fenton Reaction Experimental Procedure

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Analytical reagent-grade chemicals and ultrapure water were used. 2,4-dichlorophenoxiacetic acid (C 8 H 6 Cl 2 O 3 , 98%) was purchased from Aldrich. Potassium ferrioxalate solution was prepared according to the methodology described by Murov et al. (1993) , using potassium oxalate monohydrate (Carlo Erba, 99.5%) and FeCl 3 .6H 2 O (Merck). Hydrogen peroxide (H 2 O 2 , 30%, reagentgrade), sodium carbonate and sodium bicarbonate were obtained from Cicarelli. NaOH (Cicarelli) was employed for pH adjustment and HPLC grade methanol (Sintorgan) was used to stop the Fenton reaction. Acetonitrile and anhydrous acetic acid were purchased from Sintorgan and Anedra, respectively.
Schenone A.V., Conte L.O., Botta M.A, & Alfano O.M. (2015). Modeling and optimization of photo-Fenton degradation of 2,4-D using ferrioxalate complex and response surface methodology (RSM). Journal of environmental management, 155.
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