The separation of chromium(VI) and chromium(III) ions in supported liquid membrane process is possible from source phase containing sulfuric acid aqueous solutions at concentration above 0.10 M into receiving phase containing water or aqueous potassium hydroxide. The increase of selectivi...
comments on the paper "solubility of hydrogen in potassium hydroxide and sulfuric acid; salting-out and hydration" by p. ruetschi and r. f. amlie JE Desnoyers,BE Conway - 《Journal of Physical Chemistry》 被引量: 4发表: 1966年 [The elaboration of gas chromatographic method of the determin...
Using nitric acid, how can phosphoric acid be obtained in one step? State the conditions of the reaction and give a balanced chemical equation. Write the balanced reaction equation for nitric acid and potassium hydroxide reacting together.
In the preparation of hydrogen sulfide, dilute sulfuric acid is used instead of dilute nitric acid because nitric acid is a stronger oxidizing agent...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question O...
vanadium–titanium-iron concentrate;pellet;sulfuric acid;cyclic leaching;vanadium;Eh-pH diagrams 1. Introduction Vanadium (V) is an important transition metal that accounts for 0.02% of the total mass of the earth’s crust and is a prevalent element in the natural environment [1,2]. Due to ...
Hard-anodized is a widely used method in the aeronautical sector to improve aluminum alloys abrasion and corrosion resistance. Aim of this work was to characterize the mechanical properties and resistance hard-anodized aluminum 6061 in citric acid soluti
The batch leaching experiments were performed in a 200-mL round-bottom glass reactor, equipped with a thermometer. The leaching solutions were prepared by adding a predetermined amount of reagents into the solvent (isopropanol or water). In the reactor, a predetermined amount of sulfuric acid and...
The semi-empirical kinetic equation shows that the effects of the variables on the Al leaching rate in order of significance are the reaction temperature, acid/solid weight ratio, initial sulfuric acid concentration, and particle size. The final semi-empirical kinetic equation for Al leaching by su...