The solubility of chlorine in aqueous hydrochloric acid solutions was studied. The effects of HCl concentration and temperature on the solubility were evaluated, and the thermodynamic parameters of the dissolution were calculated. It was found that the solubility isotherms had a minimum at about 0.5 ...
in H2O), acetonitrile (Optima, LC-MS grade), fuming hydrochloric acid (EMSURE, 37.0 %), 2,2,6,6-cyclohexanone-d4 (ISOTEC, 99 atom % D), 2,2,4-trimethyl pentane or isooctane (Merck, p.a. ≥ 99.5 % GC), formic acid LC-MS grade (Merck LiChropur, 98–100 % and Fisher Optima...
anions did not significantly impact the degradation of DCF, demonstrating the stability of the process. Intermediate products of the degradation of DCF included simpler compounds such as phenol and maleic acid. Toxicity analysis demonstrated a significant reduction in the toxicity of the aqueous sample ...
a constant volume (50 mL) of cadmium solution (28.5 mg/L), at constant temperature (25 °C) A volume of 10 mL of nitric acid (1.0 mol/L) or hydrochloric (1.0 mol/L) or NaOH (1.0 mol/L) was added, respectively. The flasks were kept at room temperature (22.5 ...
The results give not only an interesting example of the effect of organic phase ionization on the distribution ratio, but also emphasize the hazards of drawing conclusions concerning the metal species extracted from equilibrium extraction data.
compounds would spontaneously react and, further, that the carbene dissociation product would also react with water to cause deactivation of the specie. The use of diazo compounds as a means of modifying polymeric articles has not found commercial favor because of the hazards normally associated with...
Eggshell waste has been classified by the Environmental Protection Agency as one of the main environmental pollutants generated by the food industry, with potential health hazards for humans29. Globally, and especially in Asia, there is a steady increase in the amount of eggshell waste, which is ...
hydrochloric acid, or sulfuric acid85,86,87,88. According to the obtained results, for the initial solution of 50 ppm chromium, after the recovery of 10.58 ppm chromium was returned, which means about 41.85% desorption occurred. The recycled adsorbent was then re-used to remove chromium and ...
The presence of organic pollutants in wastewater remains a prominent environmental concern due to the related ecological and health hazards. In response, this study employs an adsorptive methodology to address the removal of phenol and catechol, utilizin
Diluted sodium hydroxide (NaOH) and hydrochloric acid (HCl) solutions were used to obtain desired pH (2–12) solution. The required concentrations (10–100 ppm) based Cr6+ solution was prepared from stock. The different amount (2–20 mg) of ZnO-NSs was introduced into the Cr6+ solution ...