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1 sty 2022 · A central composite design (CCD) was established using the Design-Expert software with oxalic acid dosage, pH, temperature, and iron content of the solution as the four factors selected to study.
aqion is a free hydrochemistry software that. validates aqueous solutions: charge balance, EC, … calculates pH (acid-base reactions, addition of chemicals) — Online Demo. calculates the calcite-carbonate system (closed/open CO2 system, LSI) calculates alkalinity, buffer capacities (ANC, BNC), and water hardness.
4 kwi 2023 · EDTA was mixed with urine to 10 mM. pH was adjusted to 5.0 with succinic acid, then samples were diluted with equal volume of diluent (succinic acid and NaOH to pH 5.0). Diluted urine was mixed with 200 g/L activated charcoal, filtered, and analyzed.
15 cze 2012 · This paper presents NIR spectroscopy analysis on aqueous citric, tartaric, malic and oxalic solutions through quantitative analysis by selecting a set of wavelengths that can best be used to measure the pH of the solutions.
Online spectroscopic measurements can be used to provide unique insight into complex chemical systems, enabling new understanding and optimization of chemical processes. A key example of this is discussed here with the monitoring of pH of various acid systems in real-time.
1 sty 2022 · Test results indicate that increasing the oxalic acid concentration from 0 g/L to 80 g/L improved the REE precipitation efficiency from approximately 4.2% to 95.0%. Furthermore, raising the solution pH from 0.5 to 2.5 considerably enhanced the precipitation efficiency from 0.0% to 98.9%.
5 sty 2023 · Fe(III)-sulfosalicylate (FeSSA) colorimetric chemosensor was synthesized. FeSSA-based fading spectrophotometry was developed for determining oxalic acid (OA). The as-established method shows wide linear range, fast response and excellent stability.
